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Novay_Z [31]
3 years ago
10

3. A cat pushes a 0.25-kg toy with a net force of 8 N. According to Newton's second

Physics
1 answer:
jek_recluse [69]3 years ago
5 0
  • Mass=0.25kg
  • Force=8N

\\ \sf{:}\!\implies F=ma

\\ \sf{:}\!\implies Acceleration=\dfrac{F}{m}

\\ \sf{:}\!\implies Acceleration=\dfrac{8}{0.25}

\\ \sf{:}\!\implies Acceleration=32m/s^2

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To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance
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Answer:

a. 120 W

b. 28.8 N

Explanation:

To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance. Suppose a cyclist is traveling at 15 km/h on level ground. Assume he is using 480 W of metabolic power.

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(b)

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definition of terms

power is the rate at which work is done

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