A lazy bowler pulls his arm back and then lets only gravity pull the ball back around in an arc while he just holds on to the ball. At the moment when the ball has reached its highest forward point in the arc, he lets go. The ball will o a. fall from rest to the ground. o b. eave his hand with a velocity that has components both in the upward and the horizontal directions. o c. leave his hand with a velocity that only has a horizontal component. • d. leave his hand with a velocity that only has a vertical component.

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s