Answer:
25J
Explanation:
power = work done ÷ time taken.
and work done = force applied × distance covered.
according to the question, the athlete lifts the weight of 100N upto 5m therefore;
100N × 5m = 500N/m
then onwards,
the work done (500 N/m) should be divided by the time taken to calculate the power,
500 ÷ 20s = 25J
is your answer.
hope this helped. :)
Answer:
I tink is the fifth answer am not sure
Answer:
It is found that W1 - W2 loss in weight of solid when immersed in water is equal to the weight of the water displaced by the body. This verifies Archimedes' principle.
The answer should be B. Fault.
