A car whose mass is 1000kg is traveling at a constant speed of 10 m/s2. Neglecting any friction, how much force will the engine
have to supply to keep going the same speed?
1 answer:
Without friction, NO FORCE is required to keep a moving object moving
at a constant speed in a straight line.
Force CHANGES speed or direction. If neither speed nor direction changes,
then there's no force acting on the object.
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