Abaseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. the duration of the collision is 8.0 × 10-3 seconds. the ball moves off with a speed of 50 meters/second in the opposite direction. what is the value of the force?

1687.5 N

Explanation:

From the second law of motion given by Newton, Force is the rate change of momentum.

Mass of the baseball, m = 0.15 kg

Initial velocity, (negative because direction of initial velocity is opposite to the final velocity)

Final velocity,

The duration of collision,

Force,

Hence, the value of force is 1687.5 N.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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