Cracking the SAT Physics Subject Test

(B) ( −1)mc^2

(C) mc^2

(D) ( −1)mc^2

(E) mc^2

Question 22

Skip questions if you

cannot eliminate any

answers. Cross out

questions you choose to

skip so you don’t waste

time during your second

pass.

The figure above shows the two unbalanced forces acting on a block. If
the velocity of the block is to the left, then

C

(A) the work done by F 1 is positive

(B) the work done by F 2 is negative

(C) the momentum of the block is decreasing

(D) the net force is in the same direction as the velocity

(E) the kinetic energy of the block is increasing

Question 23

Circle questions you want