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A body of mass 1 kg thrown upwards with a velocity of 10 m/s comes to rest (momentarily) after moving 4m? what is the work done by the air drag in the process


A body of mass 1 kg thrown upwards with a velocity of 10 m/s comes to rest (momentarily) after moving 4m?


what is the work done by the air drag in the process

Grade:12

2 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

Dear Raghava,

m=mass=1kg, mv2/2=mgh+ work done by air drag

work done by air drag=1*(50-4g)=50-40=10Joule

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CHETAN MANDAYAM NAYAKAR

Nanda RJ
12 Points
9 years ago

potential energy=mgh==1*10*4=40

kinetic energy=1/2*m*v2  =50

work done by the air drag= sum of kinetic and potential energy=50+40=90Nm.

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