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a block of mass m sliding on smooth inclined plane of inclination threata and length l. the magnitude of power supllied by gravitational force to the block at instant it reaches the bottom on incline is? answer fast plz

a block of mass m sliding on smooth inclined plane of inclination threata and length l. the magnitude of power supllied by gravitational force to the block at instant it reaches the bottom on incline is?
answer fast plz

Grade:11

1 Answers

Vikas TU
14149 Points
5 years ago
From the third law of Newton’s equation,
v^2 = 0^2 + 2gsin(thetha)*l
v = sqroot(2gsin(thetha)*l)
 
Power = Force x velocity
          = mgsint(thetha)*sqroot(2gsin(thetha)*l) .

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