A particle is moving along a straight line through a fluid medium such that

its speed is measured as v = (2t) m/s, where t is in seconds. If it is released

from rest at s = 0, determine its positions and acceleration when t = 5 s.

A. s = 25 m, a = 2 m/s2

B. s = 23m, a = 18 m/s2

C. s = 18 m, a = 2 m/s2

D. s = 22 m, a = 9 m/s2

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

21

31

41