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secondary 4 | Physics
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Why is the answer b?
Date Posted: 3 years ago
Views: 720
Think of direct proportion
E = 0.5 mv^2
E is directly proportional to v^2 (we assume the mass of the ball remains unchanged)
When v is doubled, v^2 is quadrupled.
Energy is therefore quadrupled.
E = 0.5 mv^2
E is directly proportional to v^2 (we assume the mass of the ball remains unchanged)
When v is doubled, v^2 is quadrupled.
Energy is therefore quadrupled.
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Hope this helps!
Date Posted:
3 years ago
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