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What is a car's kinetic energy if it is 1500 kilograms and is moving at a speed of ten miles per second?
Wiki User
∙ 8y ago
Are you sure you mean 10 miles per second? That is a speed of 36,000 mph (unless you are referring to the speed of the car relative to the orbit of the earth as the earth orbits the sun, but that is approx 19 miles per second).
I think you mean 10 metres per second (as you've used a metric measure for the mass of the car).
kinetic energy = ½ × mass × velocity²
→ KE = ½ × 1500 kg × (10 m/s)²
→ KE = 75000 kgm²/s² = 75000 Joules = 75 kJ
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoA car can't move at 10 miles per second. Perhaps you mean meters per second. If something really moves at miles per second, first convert that to meters per second. Mass is already in kilograms, so you don't need to convert anything. Then, use the formula for kinetic energy, which is: (1/2) times (mass) x (speed squared). The answer will be in joules.
Wiki User
∙ 8y agoKinetic energy = 1/2 m v square = 1/2 x 1500 kg x 10 x 10 = 75000 kg mile per second
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What is the kinetic energy of 4 kilograms of bowling ball travelling down the lane at 10 meter per second?
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