A car weighing 4 tons moves along a horizontal section of the road. At a speed of 20 m / s, the engine is turned off.
| August 27, 2020 | Education
A car weighing 4 tons moves along a horizontal section of the road. At a speed of 20 m / s, the engine is turned off. What work does the friction force do before the car comes to a complete stop?
A = E2-E1 = -E1 = -800kJ
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