# Speed and motion of bowling ball for each impulse

See attached file.

A 8.0 kg bowling ball is rolling down the alley with a velocity of 2.9 m/s. For each impulse, a and b, as shown in Figure 9-3, find the resulting speed and direction of motion of the bowling ball.

_________m/s in the same direction or in the opposite direction?

_________ m/s in the same direction or in the opposite direction?

https://brainmass.com/physics/velocity/speed-motion-bowling-ball-each-impulse-282264

## SOLUTION This solution is **FREE** courtesy of BrainMass!

a) By definition, Impulse Fdt = d(mv) [change in momentum]

For impulse a, Fdt = 5 Ns (or kg m/s)

Change in momentum of the bowling ball = +5 kg m/s

Initial momentum of the ball = 8x2.9 = 23.2 kg m/s

Momentum of the ball after the impulse = 23.2 + 5 = 28.2 kg m/s

Velocity of the ball after impulse = 28.2/8 = 3.53 m/s in the same direction

b) For impulse b, Fdt = - 5 kg m/s

Change in momentum of the bowling ball = - 5 kg m/s

Initial momentum of the ball = 8x2.9 = 23.2 kg m/s

Momentum of the ball after the impulse = 23.2 - 5 = 18.2 kg m/s

Velocity of the ball after impulse = 18.2/8 = 2.28 m/s in the same direction

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