Physics, asked by yashjaglan02100, 1 day ago

A body of mass 1 kg is thrown upwards with a velocity 20 m/s. It momentarily comes to rest after attaining a height of 18 m. How much energy is lost due to air friction? (g = 10 m/s2)

Answers

Answered by yashjaglan012

7

Answer:

W by all forces =/_\ K.E

(W)friction + (W)gravity = 1/2×1×(20)^2

Wf + mgh =200

Wf + 1×10×18=200

Wf=20J

Answered by xXNIHASRAJGONEXx

1

Answer:

Loss of energy=

2

1

mv

2

−mgh=20J

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Explanation:

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