If a force of 200 Newton is required to move a wagon up a friction less hill at constant speed. the force needed to let the wagon roll down the hill at constant speed ?
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Answer:
200N
Explanation:
it also be 200N equal to it's weight so that net force zero and then speed will be constant
02mayanktyagibhardwa:
I think force due to gravity also do its work?
200 N force is required to compesate the force due to gravity so that acceleration will be zero
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