A driver notices that her 1150-kg car slows down from 85 km/h to 65 km/h in about 6 seconds on the level when it is in neutral. Approximately what power (watts and hp) is needed to keep the car traveling at a constant 75 km/h?
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As shown, a bead is sliding on a wire. How large must height h1 be if the bead , starting at rest at A, is to have a speed of 200 cm/s at point B? Ignore fiction
1 answer