Question: A batter hits a baseball with mass 0.145 kg straight upward with an initial speed of 25.0 m/s. (a) How much work has gravity done

A batter hits a baseball with mass 0.145 kg straight upward with an initial speed of 25.0 m/s.
(a) How much work has gravity done on the baseball when it reaches a height of 20.0 m above the bat?
(b) Use the work-energy theorem to calculate the speed of the baseball at a height of 20.0 m above the bat. You can ignore air resistance.
(c) Does the answer to pan (b) depend on whether the baseball is moving upward or downward at a height of 20.0 m? Explain.

Step by Step Solution

★★★★★

3.32 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

IDENTIFY Apply W Fs cosand Wtot AK SET UP The gravity force ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-W-E (24).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

You throw a ball upward with an initial speed of 4.5 m/s. When it returns to your hand 0.92 s later, it has the same speed in the downward direction (assuming air resistance can be ignored). What was...

A ball is thrown straight upward with an initial speed v0. When it reaches the top of its flight at height h, a second ball is thrown straight upward with the same initial speed. Do the balls cross...

A boy throws a stone straight upward with an initial speed of 15.0 m/s. What maximum height will the stone reach before falling back down?

1. DETAILS MY NOTES ASK YOUR TEACHER A driver noticed that there is a hazard on the road. She slams on brakes to stop the car. She had two options while she is going to stop: either to hit a haystack...

point e) Wha PHYSICS Energy Two Conservation of Energy, Work, Potential and Kinetic Energies 1) A force of 200 N is used to lift a mass up to a position 6 m above its original position. a. What was...

A major leaguer hits a baseball so that it leaves the bat at a speed of 32.0 m/s and at an angle of 36.9 above the horizontal. You can ignore air resistance. You may want to review (Page) . For help...

Hello i need help with the following questions please and thank you. laDle m - - the most recent version of this software. A cat's crinkle ball toy of mass 15 g is thrown straight up with an initial...

1. A 30 N chest was pulled 5 m across the floor at a constant speed by applying a force of 50 N at an angle of 30". Determine the amount of work done by: (a) The tension force T. (b) The force of...

A huge box having a mass of 6.80 kg is pulled down along a frictionless surface inclined at 42.00 below the horizontal by a constant force of 7.21 N that is parallel to the incline. The baggage was...

Directions: Study each situation described below. Show your complete solutions with corresponding free-body diagrams. Levels of Performance Competency Advanced Proficient Developing Intervention...

You are to create a direct messenger program. In particular, the program will perform as follows: It must behave as either a client or a server, depending on the command line arguments supplied when...

To use the principle of superposition to determine the total deflection in a cylindrical rod due to a static loading. A steel rod (E = 200 GPa) is subjected to the load shown, where P = 2650kN . A...

Describe a good experience that you have had as a consumer.

Write 3-4 paragraphs (minimum) on various methods of detecting potential financial statement and financial reporting fraud.

Wings is a not-for-profit organization dedicated to the promotion of flying in youths. It owns a number of airplanes at various airports which it uses to provide introductory flights in order to...

Wings Hospital has had a busy week. Two issues have arisen: (1) an employee was dismissed just prior to unionization, and (2) a veteran was interviewed but not hired for a position and is alleging...

Why we should choose entrepreneurship. How do entrepreneurs impact society and business development?

For each of the following situations, check the appropriate writing strategy. Direct Strategy Indirect Strategy An announcement that must convince employees to stop smoking, start exercising, and opt...

Experiment: Selecting a single card from a standard playing deck. Which has 4 suits (Hearts, Clubs, Spades, and Diamonds) and 13 Cards per suit (2-10, Jack, Queen, King, Ace) .So there are a total of...

Seether, Inc., has the following two mutually exclusive projects available. Year Project R Project S 0 $ 81,500 $ 101,200 1 28,600 25,300 2 27,600 25,300 3 25,600 40,300 4 19,600 35,300 5 10,700...

MatLab Employ Matlab's buit-in function solve to solve (symbolically) for the parabola coefficients that are governed by the following set of equations. Use x to represent x, and use f1, f2, f3 to...