A solid rubber ball of desity d and radius R falls through air. Assume that the air resistance acting on the ball is KRV, where V is velocity of the ball and K is a constant.The terminal velocity attained by the ball is (neglect buoyance)

A solid rubber ball of desity d and radius R falls through air. Assume

1.	A solid rubber ball of desity d and radius R falls through air. Assume that the air resistance acting on the ball is KRV, where V is velocity of the ball and K is a constant.The terminal velocity attained by the ball is (neglect buoyance)
Answer» `4piR^(2)dg//3K` `4piRdg//3K` `4piRd^(2)g//3K` None Answer :A