# physics

In which of the following situations is the most work done on the object?
A. Holding a 50 kg object.
B. Carrying a 30 kg object down a 40 m long hallway.
C. Lifting a 20 kg object 1 m up.
D. Carrying a 15 kg object up a flight of stairs.
E. Lowering a 25 kg object from a second story balcony to the ground

1. 👍 0
2. 👎 0
3. 👁 699

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Biology

In what situations would sampling work best for estimating population size, in what situations would mark and recapture work best and why?

2. ### physics

Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is

3. ### technology

In which of the following situations will a macro make your work more efficient?

4. ### Physical Science-Can someone check my answers?

1) The kinetic energy of an object depends on which of the following? A. the object’s mass and direction B. the object’s speed and mass---------- C. the object’s work and direction D. the object’s speed and work 2) In the

1. ### Physics

Select which of the following statements are True or False. Assume Newtonian Mechanics. 1.The work required to lift a mass one meter depends on the speed at which it is raised.. 2.The acceleration of an object is same in all

2. ### science

Calculate the work done in each of the following situations. (a) A horse pulls a wagon with a force of 1200 N and moves it 15 m. (b) A cable lifts an elevator 16 m by using a cable with a tension force of 2500 N. -How much work is

3. ### Physics

An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work

4. ### physics

Object 1 has a velocity of 3m/s and a mass of 5kg. Object 2 also has a mass of 5kg but isn't moving. Object 1 collides with Object 2 and they move off together. Work out their speed using the principle of conservation of momentum.

1. ### physics

the force exerted by a spring increases as the spring stretches. imagine that you attach a heavy object to one end of a spring and then, while holding the springs other end, whirl the spring and object in a horizontal circle. does

2. ### College Physics

The graph shows the force exerted on an object versus the position of that object along the x-axis. The force has no components other than along the x-axis. If z is an increment of 25, then what is the work done by the force on

3. ### physics

If there is just one force acting on an object, does its work necessarily result in an increase in kinetic energy? Explain. (Select all that apply.) 1.Yes, when a force does work on an object it always results in an increase in

4. ### English

Identify how the underlined word in each sentence is used. 1:Aunt Nan took the (message) for Walter and her. A:direct object*** B:indirect object C:object of the preposition D:object of verbal 2:We joined Mark and (them)on the