Answer:
5000N
Step-by-step explanation:
Power = Workdone/Time
Power = force × distance/time
Given
Power = 2000W
Distance (height) = 4m
Time = 10secs
Substitute into the formula to get the weight(force)
2000 = force × 4/10
2000 = 4F/10
Cross multiply
2000×10 = 4F
20,000 = 4F
Divide both sides by 4
4F/4 = 20,000/4
F = 5000N
Hence the weight of the block is 5000N