Question

18. A person pulls horizontally with a force of 64 N on a 14-kg box. There is a force of friction between the box and the floor of 36 N. Find the acceleration of the box in m/s2.

Answer 1

• since force=massxacceleration
• therefore acceleration=force/mass
• the resultant force=the acting force on the object-the frictional force
• the resultant force=64-36=28N
• therefore the acceleration=28/14=2m/sec^2