A vehicle (truck A), with a mass of 1800 kg, is tested for safety at a...

A vehicle (truck A), with a mass of 1800 kg, is tested for safety at a lab by having another vehicle (truck B) crash into it from behind. Initially, Truck A is at rest and truck B approaches at about 45 km/hr. After the crash, truck B recoils back at 10 km/hr, while truck A is pushed forward at 27 km/hr. Remember to give all answers in standard units. (This collision would likely be inelastic.)

Draw a sketch showing the trucks before AND after the collision, with your directions properly labeled.

Given these results, what must have been the mass of truck B? (Assume neither car lost any mass during the collision.)

How much did the total energy of the system (A + B) change? Was this change a gain or a loss of energy?

Expert Solution

genius_generous answered 2 years ago

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