3) A 2.0-kg skateboard is rolling across a smooth, flat floor when a child kicks it,...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
3) A 2.0-kg skateboard is rolling across a smooth, flat floor when a child kicks it, causing it to speed up to 4.5 m/s [N], in 0.50 s, without changing direction. The average force exerted by the child on the skateboard is 6.0 N [N]. What is the initial velocity of the skateboard? 4) A karate expert attempts to break a board using a karate chop, but fails to do so. Using the concept of impulse, explain two different changes that the karate expert can make in order to break the same board. Use the following information to answer the next two questions. Two balls roll directly toward each other. The 0.25-kg ball has a speed of 1.7 m/s; the 0.18-kg ball has a speed of 2.5 m/s. After the collision, the 0.25-kg ball has reversed its direction and has a speed of 0.10 m/s. 5a) Determine the speed of the 0.18-kg ball immediately after the collision. 5b) Using your answer from question 5a), prove if this collision was eleastic or inelastic. Note: You can still recieive marks for this question if your answer from question 5a) was incorrect. Use the following information to answer the next two questions. A 35.5-g bullet is travelling at 402 m/s towards a stationary 4.50-kg block of wood. When the bullet collides with the block of wood, it embeds itself completely in the block of wood. The bullet block of wood system is then allowed to swing upwards, as shown in the diagram below. Before After 6a) Determine the maximum height, 'h', that the bullet / block of wood system can reach. 6b) Two of the physics principles numbered on the Alberta Education 'Physics Data Sheet' (displayed on the right) must be used to determine the maximum height that the bullet / block of system can reach. The two principles, in the order in which they must be used, are Physics Principles 0 Uniform motion (Fnet = 0) 1 Accelerated motion (Fnet = 0) 2 Uniform circular motion (Fnet is radially inward) 3 Work-energy theorem 4 Conservation of momentum 5 Conservation of energy 6 Conservation of mass-energy 7 Conservation of charge 8 Conservation of nucleons Number: and Physics Principle: used first used second 9 Wave-particle duality 3) A 2.0-kg skateboard is rolling across a smooth, flat floor when a child kicks it, causing it to speed up to 4.5 m/s [N], in 0.50 s, without changing direction. The average force exerted by the child on the skateboard is 6.0 N [N]. What is the initial velocity of the skateboard? 4) A karate expert attempts to break a board using a karate chop, but fails to do so. Using the concept of impulse, explain two different changes that the karate expert can make in order to break the same board. Use the following information to answer the next two questions. Two balls roll directly toward each other. The 0.25-kg ball has a speed of 1.7 m/s; the 0.18-kg ball has a speed of 2.5 m/s. After the collision, the 0.25-kg ball has reversed its direction and has a speed of 0.10 m/s. 5a) Determine the speed of the 0.18-kg ball immediately after the collision. 5b) Using your answer from question 5a), prove if this collision was eleastic or inelastic. Note: You can still recieive marks for this question if your answer from question 5a) was incorrect. Use the following information to answer the next two questions. A 35.5-g bullet is travelling at 402 m/s towards a stationary 4.50-kg block of wood. When the bullet collides with the block of wood, it embeds itself completely in the block of wood. The bullet block of wood system is then allowed to swing upwards, as shown in the diagram below. Before After 6a) Determine the maximum height, 'h', that the bullet / block of wood system can reach. 6b) Two of the physics principles numbered on the Alberta Education 'Physics Data Sheet' (displayed on the right) must be used to determine the maximum height that the bullet / block of system can reach. The two principles, in the order in which they must be used, are Physics Principles 0 Uniform motion (Fnet = 0) 1 Accelerated motion (Fnet = 0) 2 Uniform circular motion (Fnet is radially inward) 3 Work-energy theorem 4 Conservation of momentum 5 Conservation of energy 6 Conservation of mass-energy 7 Conservation of charge 8 Conservation of nucleons Number: and Physics Principle: used first used second 9 Wave-particle duality
Expert Answer:
Related Book For
Posted Date:
Students also viewed these physics questions
-
Q1. You have identified a market opportunity for home media players that would cater for older members of the population. Many older people have difficulty in understanding the operating principles...
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
A bond currently has a price of $940. The current yield to maturity on the bond is 7%. If the yield decreases by 20 basis points, the price of the bond will go up to $960. Based on this information,...
-
The controller of Hall Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Instructions (a) Determine the fixed- and variable-cost...
-
Superman is standing 120 m horizontally away from Lois Lane. A villain throws a rock vertically downward with a speed of 2.8 m/s from 14.0 m directly above Lois. (a) If Superman is to intervene and...
-
Great Wall Chinese Cuisine had \($93,000\) of total assets and \($31,000\) of total stock holders equity at May 31,2010. At May 31, 2011, Great Wall Chinese Cuisine had assets totaling \($147,000\)...
-
McDonalds Corp.s Happy Meal meal selection consists of an entre, a small order of French fries, a small drink, and a toy. In the early 1990s, McDonalds began to aim its Happy Meal marketing at...
-
VPN, Your division analyzes two investment projects, which require an initial expense of $ 15 million. You calculate that the investment will produce the following net cash flows: Year Project A...
-
AG Mechanical is planning to acquire Foster Metal works. Foster's cost of equity is 12%; it is financed 80% by common equity and the remainder by debt at 7%. Foster's tax rate is 30%. Below is a...
-
on list K tion 1 stion 2 stion 3 Data table The Goldman Company retails two products: a standard and a deluxe version of a luggage carrier. The budgeted income statement for next period is as...
-
On December 31, 2023, Berclair Incorporated had 540 million shares of common stock and 21 million shares of 9%, $100 par value cumulative preferred stock issued and outstanding. On March 1, 2024,...
-
I always choke up when I see this picture of the legendary Hank Aaron. (Dad jokes rule!) Even though a baseball bat does not have its mass uniformly distributed along the length, we will make our...
-
Hospital is evaluating the purchase of new office equipment from three vendors. Assume MARR=15% and 4 year useful life on all equipment. Select best vendor. Assume: Analysis period = useful life = 4...
-
1 Summary Develop a competitive AI for the game Mancala Demonstrate your understanding of the MiniMax search algorithm, alpha- beta pruning, and dynamic programming We will be using Python 3 so be...
-
What are the implications of cultural pluralism and multiculturalism for organizational identity and cohesion, and how can entities leverage cultural heterogeneity as a source of creative tension and...
-
GEs implementation of SaaS was, at the time, the largest rollout of the technology in the world. What other companies have started using SaaS extensively since? Using information found online,...
-
Let X be a random variable taking on values a1, a2, . . . , pr with probabilities p1, p2, . . . , pr and with E(X) = μ. Define the spread of X as follows: This, like the standard deviation, is a...
-
A patient recovering from surgery is being given fluid intravenously. The fluid has a density of 1030 kg/m3, and 9.5 10-4 m3 of it flows into the patient every six hours. Find the mass flow rate in...
-
The drawing shows the forcedisplacement graph for two different bows. These graphs give the force that an archer must apply to draw the bowstring. (a) For which bow is more work required to draw the...
-
For research purposes a sonic buoy is tethered to the ocean floor and emits an infrasonic pulse of sound (speed = 1522 m/s). The period of this sound is 71ms. Determine the wavelength of the sound.
-
On a blank piece of paper, draw a picture of a leader. Once your picture is complete, answer the following questions: What does this picture say about you? What does this picture say about what...
-
Summarize PathGoal Leadership Theory. What theories of motivation can you tie to the assumptions of the model?
-
Identify health care situations in which Tannenbaum and Schmidts Continuum of Leadership Behavior would suggest the autocratic leadership style as the most appropriate.
Study smarter with the SolutionInn App