A boy blowing a whistle sends out air at one gram per sec with a speed of 200m/s His - Physics - Work Energy And Power

Question

A boy blowing a whistle sends out air at one gram per sec with a
speed of 200m/s His lung power is?

Anchit Kumari · Accepted Answer

Dear Student,P=Fv=dpdtvdpdt=dmdtv=200 × 0
001=0
2  ( as 1 kg=1000 g, 1 m=0
001 kg) P=0 2 × 200=40 WRegards

A boy blowing a whistle sends out air at one gram per sec with a speed of 200m/s. His lung power is?