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A 1200-kg car initially at rest undergoes a constant acceleration for 8.8 s reaching a speed...

A 1200-kg car initially at rest undergoes a constant acceleration for 8.8 s reaching a speed of10 m/s. It then collides with a stationary car that has a perfectly elastic spring bumper.

(a) What is the final kinetic energy of the two-car system?

(b) If the initially stationary car has inertia equal to 2000 kg, what are the final velocities? (Not speeds)

(c) What assumptions/conditions allowed you to use the equations to solve the problems?

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