a block of mass 2 kg pulled on a smooth inclined plane at an angle of 30° if the block moves with an acceleration of 1m/s^2 find the power delivered by the pulling force at a time 4 seconds after motion starts
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sorry I don't know answer
himansu59:
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From the diagram, F= |ma-mgcosθ|=|2-16.97|N=14.97N
We know, sₓ=uₓt+1÷2gt²
sₓ=78.4m
We know, Power= Fs/t=14.97×78.4÷4=293.41W
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not correct...
Why? Answer didn't match?
answew is 47.2 w....i think u draw wrong f.b.d.......
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