two sailors decide to have an unusual race.Each has a power boat that travels at 10 m/s in still water.However,the river,of width 100 m,flows at 5 m/s. sailor A will go to a point directly across the starting point and return. sailor B will travel 100 m downstream and then return .who wins?

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.

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