An automobile with passengers has a weight of 16,400 N (= 3680 lb) and is moving up a 10° slope with an initial speed of 70 mi/h (= 113 km/h) when the driver begins to apply the brakes. The car comes to a stop after traveling 225 m along the inclined road. Calculate the work done by the brakes in stopping the car, assuming that all other energy transfers in this problem (such as heat and internal energy) can be neglected.

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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