PH-881
Kinetic energy
Physics · Secondary 3 · Hard · Kinetic energy
A car of mass 900 kg is travelling at 20 m/s. The driver brakes and the car slows uniformly to 8.0 m/s in 6.0 s. What is the change in kinetic energy of the car?
- 28 800 J gain
- 151 200 J loss
- 180 000 J loss
- 208 800 J gain
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