Question

Below Figure shows the velocity-time graph of a particle of mass 200 g moving in a stra ight line. Calculate the force acting on the particle.

Answer 1

As we know that slope of velocity time graph gives acceleration so acceleration of the body is= (v - u)/ ( t₂ - t₁) ={20 - 0)/(5-0) = 4 ms^-2
Mass of the body is= 200 g =0.2 kg
Force applied is equal to = 0.2 x4 = 0.8 N.