Given the force applied, distance covered and time elapsed, Cho's power output is 4N.m/s.
Option B) is the correct answer.
What is power?
Power is the amount of energy transferred or converted per unit time.
It is expressed as;
Power = work done ÷ time
But work done = force × distance
Hence,
Power = ( force × distance ) / time
Given that;
Distance covered = 10m
Time elapsed = 5s
Force applied = 2N
Power = ?
Power = ( force × distance ) / time
Power = ( 2N × 10m) / 5s
Power = 4N.m/s
Given the force applied, distance covered and time elapsed, Cho's power output is 4N.m/s.
Option B) is the correct answer.
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