Question

A force acts on a body of mass 5 kg and changes its velocity from 8 m/s to 12 m/s in 4s. Then magnitude of force is

Answer 1

Answer:

F=dp/dt

 =mdv/dt

  =5(12-8)/4

   =5*4/4

   =5 N

Answer 2

NOTE:F=MA=M×CHANGE IN VELOCITY

TIME