A 21-kg mass initially at rest on a smooth table has a horizontal force applied to it. The mass moves a distance of 30 meters in 5 seconds. The magnitude of the force is
A) 50 N.
B) 64 N.
C) 71 N.
D) 79 N.

Question

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The Answer of A 21-kg mass initially at rest on a smooth table has a horizontal force applied to it. The mass moves a distance of 30 meters in 5 seconds. The magnitude of the force is
A) 50 N.
B) 64 N.
C) 71 N.
D) 79 N.

A 21-Kg Mass Initially at Rest on a Smooth Table