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A block on a level horizontal surface of negligible friction is initially traveling at 20 m/s to the left. A horizontal force F is exerted to the right on the block for the time interval 0 <t < 0.10 s. The magnitude of the force is given as a function of time t by the equation F = at, where a = 240
N/s and t is in seconds.
%3D
What is the magnitude of the change in momentum of the block due to the horizontal force?
A
1.2 kg • m/s
B
12 kg• m/s
24 kg • m/s
240 kg • m/s
The change in momentum of the block cannot be determined without knowing the block's mass.

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