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Setler [38]
2 years ago
13

If a constant force of 20N is applied to a cart, how much power does the force exert on the cart when it reaches a speed of 4m/s

?
Physics
1 answer:
SCORPION-xisa [38]2 years ago
3 0

Answer:80watts

Explanation:

Power=force×velocity

Power=20×4

Power=80watts

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Answer:

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Explanation:

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\Delta K = \Delta E_{p} = q\Delta V

<u>Where</u>:

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Now, the kinetic energy of the particle as it moves through point B is:

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K_{f} = \Delta K + K_{i} = 1.2 J + 6.7 J = 7.9 J

Therefore, the kinetic energy of the particle as it moves through point B is 7.9 J.

I hope it helps you!      

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