Question

and engine can pull 500 metric ton load up an inclined plane rising 1 in 10 with speed of 10 M per second.what is the power of it

Answer 1

510kw

Net upward force in pulling the engine up (f) = mg sinθ + frictional force

where m is the mass of the body = 500×100 = 50000 kg

g is the acceleration due to gravity.

sinθ = 1/100

frictional force = 2000 N

On substituting the value , we get

f = 51000 N

power = force . distance/ time = force . velocity

power = 51000 . 10

= 510000 watt

= 5.1 ×105 watt