A 3.5-tonne vehicle accelerates to 110 miles per hour in 30 seconds. Calculate the force exerted by the engine ignoring friction losses.
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Q: miles per hour
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A: mass = 800 kg u = 0 m/s (final speed)initial speed = 80km/h = 80 * 5/18 = 22.22 m/sd = 115 m
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