1. What force, acting for 0.00135 seconds, will change the velocity of a 95 g baseball from 50 m/s east to 45 m/s west?

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1 What Force Acting For 0 00135 Seconds Will Change The Velocity Of A 95 G Baseball From 50 M S East To 45 M S West 1 (22.04 KiB) Viewed 31 times

1. What force, acting for 0.00135 seconds, will change the velocity of a 95 g baseball from 50 m/s east to 45 m/s west? Ans. 6700 N | 2. A baseball of mass 140 g reaches the batter at a speed of 35 m/s and is hit directly back at the pitcher at a speed of 50 m/s. What impulse is delivered to the ball by the bat? If the ball is in contact with the bat for 0.0006 seconds, what force does the bat exert on the ball? Ans. 11.9 Ns, 19800 N 3. A loaded freight car with a mass of 5000 kg breaks away and moves down the track with a speed of 4.0 m/s. It finally collides with two stationary freight cars with a mass of 1500 kg each. If they all couple together, what is their velocity as they move down the track?