Answer:
Explanation:
Given that,
Amount of energy consumed by a 60W light bulb for 1 minutes
P = 60 W
t = 1 mins = 60seconds
This energy can be used to lift a body that weight 10N
W = 10N
This shows that the electrical energy is converted to potential energy
Let calculate the electrical energy
Power is the rate of doing work
Power = Work / time
Therefore, work = power × time
Work = 60 × 60
Work = 3600 J
Potential energy can be calculated using
P.E = mgh
Where, weight is
W = mg
Then, P.E = W•h
P.E = 10•h
Then,
Potential energy, = Electrical energy
P.E = Work
10•h = 3600
Divide both sides by 10
h = 3600 / 10
h = 360m
So, the object will be lifted to a height of 360m
