1.

11.When a horizontal force P acts on a cart of mass 20 kg,it moves with a uniform velocity on a horizontal floor.When a force of 1.2 P acts on the cart, it moves with anacceleration of 0.05 m/s2. Find the value of P.

Answer»

F = ma,m = 20kg Let force of friction = f, it always resists the motion & 1st the body moves wth uniform velocity by action of force p means acceleration is 0, ie p - f = 0,-> f = p &in 2nd time 1.2p - f = 1.2p - (p) = 0.2p = 20 *0.05 = 1N --->p = 1/0.2 = 5N



Discussion

No Comment Found

Related InterviewSolutions