A Car of Mass 1689 Kg Collides Head-On with a Parked

question 24

Multiple Choice

A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car?

• A) 19 km/h
• B) 38 km/h
• C) 29 km/h
• D) 10 km/h

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