A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving...

A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving south at 20 m/s, and the two cars stick together. Consider east the positive x-direction and north the positive y-direction.

a) What is the x-component of the initial momentum before the collision? ( -7100 kg·m/s, 64900 kg·m/s or 28900 kg·m/s)

b) What is the y-component of the initial momentum before the collision? (-36000 kg·m/s, -7100 kg·m/s, 64900 kg·m/s or 36000 kg·m/s)

c) What is the x-component of the two cars’ final velocity after the collision? (8.26 m/s, 17 m/s, 16.06 m/s)

d) What is the y-component of the two cars’ final velocity after the collision? (-20 m/s, -21.18 m/s, -10.29 m/s or 10.29 m/s)

e) What is the speed of the two cars after the collision?

f) How much kinetic energy is lost in the collision?

Solutions

Expert Solution

genius_generous answered 1 year ago

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