A train is crossing an observer standing on the platform. The first compartment of the train takes two seconds to cross the observer while the 2nd takes 2.5 seconds to cross him/

train is moving with uniform acceleration. FIND

a) velocity of the train when the front of 1st compartment crosses the observer.

b) acceleration of train

GIVEN THAT LENGHT OF EACH COMPARTMENT IS 15m.

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

11

21

31

41