- #1

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a) show that the instaneous power delivered by the force at any timet is (F^2/m)*t

Please give some directions how to solve it . Thank you

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- Thread starter hauthuong
- Start date

- #1

- 15

- 0

a) show that the instaneous power delivered by the force at any timet is (F^2/m)*t

Please give some directions how to solve it . Thank you

- #2

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Any idea where to start? (hint: what is the formula for power)

- #3

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formula P=W/t or P=FV , and I don't know how to get t and and m involve in the formula

- #4

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- #5

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A raindrop (m=3.35*10^-5 kg) falls vertically at a constant speed under the influence of gravity and air resistance. after the drop has fallen 100m,

a)what is the work done by gravity?

b)the energy discipated by air resistance?

I got no clue for air resistance . Thank you

- #6

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- #7

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is it called resistive force?

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