Wed February 20, 2013 By:

a 2 kg object is moving horizontally with a speed of 4 m/s. according to newton's 1st law of motion,how much net force is reqd to keep the object moving vid same speed & in same direction? a)8N b)0N c)20N d)7N e)none

Expert Reply
Wed February 20, 2013
according to 1st law, the state of motion will remain same is no external force is applied.
Thus 0N is the correct answer,
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