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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Answered by
2
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.
Answered by
12
Answer:
Formula used here is KE=1/2mv^2
A’s kinetic energy >B’s kinetic energy
560kgm^2/s^2>100kgm^2/s^2
Explanation:
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