Maths

A ball is dropped from a height of 66 meters. Its height exactly t seconds later is given by h(t) = -4.9t2 + 66 Find the time when the ball hits the ground. t Select an answer Find the velocity of the ball at any time t. v(t) Find the acceleration of the ball at any time t. a(t) Find the velocity of the ball at the instant it hits the ground. Select an answer At what speed does the ball hit the ground? Select an answer B What is the acceleration of the ball as it hits the ground? Select an