An election travels in a straight line from the cathode of a vaccum tube to its anode, which is exactly 1.0 cm away.It starts with 0 speed and reaches the anode with a speed of 6.0×10⁶ meters/sec.

(a) Assume the constant acceleration and compute the force on the electron.

(b)Compare it with gravitational force on the electron , which we neglected when we assumed straight-line motion.Is t his assumption valid?

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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