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A 70kg man runs at a pace of 4 m/s and a 50g meteor travels at 2 km/s. Which has the most kinetic energy?. |
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Answer» ong>Answer: Kinetic energy is the energy STORED in moving objects. Stationary objects have no kinetic energy. Ek = 0.5 × m × v2 Examples: 1. A car with a MASS of 700 kg is moving with a speed of 20m/s. Calculate the kinetic energy of the car. 2. A cyclist and BIKE have a TOTAL mass of 100 kg and a speed of 15 m/s. Calculate the kinetic energy. 3. A tennis BALL is traveling at 50 m/s and has a kinetic energy of 75 J. Calculate the mass of the tennis ball. |
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