The spring shown in FIGURE P10.54 is compressed 50 cm and used to launch a 100 kg
Question:
The spring shown in FIGURE P10.54 is compressed 50 cm and used to launch a 100 kg physics student. The track is frictionless until it starts up the incline. The student??s coefficient of kinetic friction on the 30? incline is 0.15.
a. What is the student??s speed just after losing contact with the spring?b. How far up the incline does the student go?
k= 80,000 N/m m= 100 kg 10 m 30° FIGURE P10.54
Step by Step Answer:
Model Assume an ideal spring so Hookes law is obeyed Treat the physics student as a particle and app...View the full answer
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
Related Video
Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.
Students also viewed these Physics questions
-
For the element shown in Figure P10-14, replace the distributed load with the energy equivalent nodal forces by evaluating a force matrix similar to Eq. (10.2.29). Let h 5 0.1 in thick. The global...
-
For the two-noded one-dimensional isoparametric element shown in Figure P10-2 (a) and (b), with shape functions given by Eq. (10.1.5), determine (a) Intrinsic coordinate s at point A and (b) Shape...
-
Using the three-noded bar element shown in Figure P10-5 (a) and (b), with shape functions given by Eq. (10.5.9), determine (a) The intrinsic coordinate s at point A and (b) The shape functions, N1,...
-
Norman Freight purchased a building for $1,100,000 and depreciated it on a straight-line basis over a 30-year period. The estimated residual value was $140,000. After using the building for 15 years,...
-
The Wendel Stove Company is developing a "professional"- model stove aimed at the home market. The company estimates that variable costs will be $2,700 per unit and fixed costs will be $12,600,000...
-
A TOP-N analysis is performed by determining the rows with: a. The highest ROWNUM values b. A ROWNUM value greater than or equal to N c. The lowest ROWNUM values d. A ROWNUM value less than or equal...
-
With reference to the previous exercise, construct a 95% confidence interval for the true population mean labor time. Data From Previous Exercise 7.3 An industrial engineer collected data on the...
-
Sinise Industries acquired two copyrights during 2010. One copyright related to a textbook that was developed internally at a cost of $9,900. This textbook is estimated to have a useful life of 3...
-
Evaluate the integral /4 S sec6 x tan6 x dx 0
-
A manufacturer is considering alternatives for building new plants, to be located closer to three of its primary customers with whom it intends to develop long-term, sole-supplier relationships. The...
-
a. A 50 g ice cube can slide without friction up and down a 30 slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 25 N/m....
-
Protons and neutrons (together called nucleons) are held together in the nucleus of an atom by a force called the strong force. At very small separations, the strong force between two nucleons is...
-
Is underload as stressful as overload? Why or why not?
-
First research each of your selected tools, then write a descriptive paragraph outlining their purpose and capabilities. Describe how these applications would be used in the modern workplace. Do they...
-
If a not-for-profit organization uses the restricted fund method to account for contributions and receives a restricted contribution for which it does not have a corresponding restricted fund, how...
-
The following is an accounting transaction. Based on this transaction, what happened in the business?
-
What is the correct TDS ratio (percentages are rounded up)? Gross Income $48,000 Chequing Account Balance $1,000 Net Income $38,000 Property Taxes $4,800 Heating Payments $3,600 Annual Car Payment...
-
LaToya Limmons is the manager of the Human Resources (HR) department and Javier Jartin is the manager of the sales department for a production company headquartered in the United States but also has...
-
As we have explained in the text, the TCP sliding window, when used without new SACK options, is a combination of the Go-Back-N and the Selective- Repeat protocols. Explain which aspects of the TCP...
-
When the concentration of a strong acid is not substantially higher than 1.0 10-7 M, the ionization of water must be taken into account in the calculation of the solution's pH. (a) Derive an...
-
A 40-W power transistor is to be cooled by attaching it to one of the commercially available heat sinks shown in Table 176. Select a heat sink that will allow the case temperature of the transistor...
-
Circular cooling fins of diameter D = 1 mm and length L = 25.4 mm, made of copper (k = 400 W/m·K), are used to enhance heat transfer from a surface that is maintained at temperature T s1 =...
-
Reconsider Prob. 17114. Using an appropriate software, investigate the effect of the center-to-center distance of the fins on the rate of heat transfer from the surface and the overall effectiveness...
-
A couple obtained a $20,000 mortgage loan at an interest rate of 10.5% compounded monthly. (Original principal equals to PV of all payments discounted at the interest rate on the loan contract) (1)...
-
What strategies and tactics are employed to manage strategic risks and uncertainties, including geopolitical instability, supply chain disruptions, and emerging competitive threats, while preserving...
-
How do strategic planners integrate ethical considerations and sustainability imperatives into strategic planning processes, balancing short-term financial objectives with long-term societal and...
Study smarter with the SolutionInn App