At a major league baseball game, a pitcher delivers a

45(m)/(s)(100.7mph)

fastball to the first player at bat, who bunts (meets the pitch with a loosely held stationary bat) so that the ball leaves the bat at only ) directly back towards the pitcher. The second player at bat also receives a

45(m)/(s)

fastball from the pitcher, but he swings his bat hard and sends the ball in a fast line drive directly back towards the pitcher at

50(m)/(s)(111.8mph)

. The mass of a standard baseball is

0.145kg

.

At a major league baseball game, a pitcher delivers a 45m/s(100.7mph) fastball to the first player at bat, who bunts (meets the pitch with a loosely held stationary bat) so that the ball leaves the bat at only 5m/s(11.2mph ) directly bach. towards the pitcher. The second player at bat also receives a 45m/s fastball from the pitcher, but he swings his bat hard and sends the ball in a fast line drive directly back towards the pitcher at 50m/s(111.8mph). The mass of a standard baseball is 0.145kg