Two cars start in a race with velocities u₁ and u₂ and travel in a st.line with accelerations xand y. If both reach finish line at same time ,the range of the race is

1. 2(u₁-u₂)/(x-y)² X(u₁y-u₂x)
2. 2(u₁-u₂)/(x+y) X(u₁x-u₂y)
3. 2(u₁-u₂)²/(x-y)²
4. 2u₁u₂/xy

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

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