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How much work is needed to stop a 20g bullet moving with a speed of 150 ms-1​

How much work is needed to stop a 20g bullet moving with a speed of 150 ms-1​
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3 votes
How much work is needed to stop a 20g bullet moving with a speed of 150 ms-1​

asked
User Tal Yarkoni
by
7.5k points

1 Answer

4 votes

Answer:

225 J

Step-by-step explanation:

Work = change in energy

W = 1/2 mv²

W = 1/2 (0.020 kg) (150 m/s)²

W = 225 J

answered
User Got
by
8.8k points
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