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A cyclist exerts a force of 100 N to maintain a speed of 5 m/s. What is the powe

Practice Questions

Q1
A cyclist exerts a force of 100 N to maintain a speed of 5 m/s. What is the power output of the cyclist?
  1. 200 W
  2. 500 W
  3. 1000 W
  4. 250 W

Questions & Step-by-Step Solutions

A cyclist exerts a force of 100 N to maintain a speed of 5 m/s. What is the power output of the cyclist?
  • Step 1: Identify the formula for power, which is P = F * v.
  • Step 2: Determine the force (F) exerted by the cyclist, which is 100 N.
  • Step 3: Determine the speed (v) of the cyclist, which is 5 m/s.
  • Step 4: Substitute the values into the formula: P = 100 N * 5 m/s.
  • Step 5: Calculate the power: P = 500 W.
  • Power Calculation – Power is calculated as the product of force and velocity (P = F * v), which measures the rate of doing work.
  • Units of Measurement – Understanding the units involved, where force is measured in Newtons (N) and power in Watts (W).
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