PA car is moving towards East with a certain speed.after some time it starts moving towards west with the same speed.if the two speeds are represented by "vi" and "vf".then vi=-vf (True or false??)
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PA car is moving towards East with a certain speed.after some time it starts moving towards west with the same speed.if the two speeds are represented by "vi" and "vf".then vi=-vf (True or false??)
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