Observer S reports that an event occurred on the x axis at x = 3.20 X 10⁸ m at a time t = 2.50 s. (a) Observer S' is moving in the direction of increasing x at a speed of 0.380c. What coordinates would S' report for the event? (b) What coordinates would S report if S were moving in the direction of decreasing x at this same speed?

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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