What applied horizontal force will accelerate a 400-kg crate at 1 m/s²across a factory floor against a friction force half its weight? A)600 N B)1600 N C)2000 N D)2400 N E)none of the above

Question

Quizplus · Accepted Answer

The friction force is half the weight of the crate, which is 0.5 * 400 kg * 9.8 m/s² = 1960 N. To accelerate the crate at 1 m/s², the net force required is 400 kg * 1 m/s² = 400 N. Therefore, the applied force must be 1960 N + 400 N = 2360 N, which rounds to 2400 N.

What Applied Horizontal Force Will Accelerate a 400-Kg Crate at 1