Question

a crate of mass 50kg is dragged by an engine along a horizontal floor through distance of 6m in 3s. calculate the power of the engine in watts.(g=10ms^-2)​

Answer 1

9000watts

Explanation:

m=50kg

g=10

h=6

t=3

formula=work done×time

work done=m×g×h

Answer=m×g×h×t

50*10*6*3=9000watts

Answer 2

1000W

Explanation:

Sice,Power is the rate of work done to the time.

P=work done/time

work=force ×distance

P=50kg×10N/kg×6m

3s

P=500×6

3s

P=3000

3

P= 1000W