Question

PLS HELP How much power is used if an athlete lives a 100n Weight up 5m in 20 seconds

Answer 1

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 2

Answer:

We know that,

Power = Work done/time taken

P = fs/t

P = 100 × 5/20

P = 25Watt.