Jane and Jake are looking at what happens to body 1 of mass m and body 2 of mass 2m, initially at rest, when equal forces are applied separately to the two bodies. Jake says that equal forces applied for equal times do equal amounts of work on the two bodies. Jane says that the two forces do equal amounts of work only if the two bodies move equal distances in the direction of the forces. Which

one, if either, is correct?
a. Jake, because the speed of body 1 is half the speed of body 2, but m1v1 = m2v2.
b. Jane, because work does not depend on mass, only on force times distance.
c. Jake, because all bodies travel equal distances when equal forces are applied for equal times.
d. Jane, because it takes the same time for all bodies to travel equal distances when equal forces are involved.
e. Neither, because we can't compare the amounts of work done on bodies of different mass.


b

Physics & Space Science

You might also like to view...

Venus is about the size of Earth's Moon

Indicate whether the statement is true or false

Physics & Space Science

The darker-colored bands in Jupiter's atmosphere are ________.

A. moving downward B. lower in altitude than the lighter-colored bands C. transparent, relative to the lighter-colored bands D. warmer than the lighter-colored bands E. All of these choices are correct.

Physics & Space Science

Which of the following did Alfred Wegener not use to support his theory of continental drift?

A) paleoclimate data B) similar fossils on widely separated continents C) paleomagnetic data D) similar rocks on widely separated continents

Physics & Space Science

A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree?

A) 21 m B) 22 m C) 23 m D) 24 m E) 26 m

Physics & Space Science