A net force of 30 newtons is applied to a block of mass 10 kg. The force that must be applied to a block of mass 5 kg to give it equal acceleration is ________.
A) 5
B) 10
C) 15
D) 20
E) 30 N

Question

Quizplus · Accepted Answer

We know that force=mass x acceleration, so the acceleration of the 10 kg block is 30/10=3 m/s^2. To achieve the same acceleration in the 5 kg block, we need to use the same formula and solve for force: force=mass x acceleration, force=5 x 3 = 15 N. Therefore, the answer is C, 15 N.

A Net Force of 30 Newtons Is Applied to a Block