PH-852
Kinetic energy
Physics · Secondary 3 · Hard · Kinetic energy
A car of mass 800 kg is travelling at 20 m/s. The driver brakes and the car slows to 10 m/s.
How much kinetic energy is lost by the car?
How much kinetic energy is lost by the car?
- 4.0 × 10⁴ J
- 8.0 × 10⁴ J
- 1.2 × 10⁵ J
- 2.0 × 10⁵ J
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