An energetic emitted from the Sun has a total energy in excess of 100 GeV. As measured from the Earth, how much time elapses from when the proton leaves the Sun to when it strikes the Earth?

(A) ≈ 6 s (B) ≈ 1 min

(C) ≈ 9 min (D) ≈ 20 min

(E) The question cannot be answered without more knowledge of the proton’s energy

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