Question: Which requires more work: lifting a 2-kg rock to a height of 4 m without acceleration, or accelerating the same rock horizontally from rest to

Which requires more work: lifting a 2-kg rock to a height of 4 m without acceleration, or accelerating the same rock horizontally from rest to a speed of 10 m/s?

Step by Step Solution

★★★★★

3.32 Rating (158 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Mass of the rock m 2 kg Case I Lifting of the rock Height h 4m Work done in lifting the ... 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 (2 attachments)

1575_60619c5a6d622_743963.pdf

180 KBs PDF File

1575_60619c5a6d622_743963.docx

120 KBs Word File

Students Have Also Explored These Related Physics Everyday Phenomena Questions!

Which requires more work: lifting a 50-kg sack a vertical distance of 2 m or lifting a 25-kg sack a vertical distance of 4 m?

Which requires more work: stretching a strong spring a certain distance or stretching a weak spring the same distance? Defend your answer.

Suppose you wish to compare the work done by pushing a box on rollers up a ramp to the work done if you lift the box straight up to the same final height. a. What work is required to lift a 100N box...

Which requires more work lifting a 2-kg rock to a height of 4 m without acceleration, or accelerating the same rock horizontally from rest to a speed of 10 m/s

answer all the questions Question 1 (1 point] A ball is being twirled in a circle at the end of a string. The string provides the centripetal force needed to keep the ball moving in a circle at...

answer all quetions Question 1 (1 point] Which requires more work: lifting a 7-kg rock to a height of 1.8 m without acceleration or accelerating the same rock horizontally from rest to a speed of 6...

Must be handwritten neatly and show all work and steps for upvote 1. A car with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s when braking. If a car is...

Must all be handwritten neatly and show all work and steps 1. A car with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s when braking. If a car is initially...

Answer all the questions Question 1 {1 point] A ball is being twirled in a circle at the end of a string. The string provides the centripetal force needed to keep the ball moving in a circle at...

QUESTION 1 A driver in a car traveling at a speed of 28.8 m's sees a deer 100 m away on the road. Calculate the minimum constant acceleration that is necessary of the car to stop without hitting the...

Young & Liu Inc.'s free cash flow during the just-ended year (t = 0) was $100 million, and FCF is expected to grow at a constant rate of 5% in the future. If the weighted average cost of capital...

Which of the following statements is normative? a) Economists should not make normative statements. b) Warts are caused by handling toads. c) As smartphone prices fall, people will buy more of them....

5. Explain how to determine an appropriate financial compensation level.

(a) Write out the ground-state electron configuration (1s 2 , 2s 2 ,) for the carbon atom. (b) What element of next-larger Z has chemical properties similar to those of carbon? Give the ground-state...

For magnesium, the first ionization potential is 7.6 eV. The second ionization potential (additional energy required to remove a second electron) is almost twice this, 15 eV, and the third ionization...

The energies for an electron in the K, L, and M shells of the tungsten atom are -69,500 eV, and -22,000 eV, respectively. Calculate the wavelengths of the K and K x rays of tungsten.

Kaleb Konstruction, Inc., has the following mutually exclusive projects available. The company has historically used a three-year cutoff for projects. The required return is 10 percent. Year Project...

Net present value Using a cost of capital of 16%, calculate the net present value for the project shown in the following table and indicate whether it is acceptable, The net present value (NPV) of...

Lindsay is 2 5 years old and has a new job in web development. She wants to make sure that she is financially sound in 3 0 years, so she plans to invest the same amount into a retirement account at...