physics homework

Question

A crate of bananas with a mass of 25.0 KG is dragged across a level floor by an applied force of +150 N [E] against a frictional force of 50.0 N [W]. what is the observed acceleration of the crate? Show your work.

Answer 1

a = F/m (Newton's 2nd law)

 

F = net force = (150 - 50.0) N [E] = 100 N [E]

 

a = [100 N / (25.0 kg)] [E] = 4.00 m/s² [E]