The radius of ball A is twice of than of ball B.What wll be ratio of their terminal velocities in water?

What is terminal velocity?

A ball of mass m, moving with a speed 2v_0 collides inelastically (e>0) with an identical ball at rest. Show that For a general collision, the angle between the two velocities of scattered balls is less than 90^@ .

Balls are arranged in rows to form an equilateral triangle. The first row consists of one ball, the second row of two balls and so on. If 669 more balls are added,then all the balls can be arranged in the shape of a square and each of the sides, then contains 8 balls less than each side of the triangle. Determine the initial number of balls.

A player throws a ball upwards with an initial velocity u.What is the direction of accdeleration during the upward motion of the ball?

A bag A contains 6 white and 7 black balls while the other bag B contains 4 white and 5 black balls. A ball is transferred from the bag A to the bag B. Then a ball is drawn from the bag B. Find the probability that the ball drawn is white.

With what terminal velocity will an air bubble 0.8 m in diameter rise in a liquid of viscosity 0.15 Ns m^-2 and specific gravity 0.9 ? What is the terminal velocity fo the sam ebubble in water?

What is done to stop a moving ball?