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If a cyclist is moving at a constant speed and exerts a force of 200 N, what is

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Question: If a cyclist is moving at a constant speed and exerts a force of 200 N, what is the power output if the speed is 5 m/s?

Options:

  1. 1000 W
  2. 500 W
  3. 200 W
  4. 400 W

Correct Answer: 1000 W

Solution: 

Power can be calculated using P = F * v. Here, F = 200 N and v = 5 m/s. Thus, P = 200 N * 5 m/s = 1000 W.

If a cyclist is moving at a constant speed and exerts a force of 200 N, what is

Practice Questions

Q1
If a cyclist is moving at a constant speed and exerts a force of 200 N, what is the power output if the speed is 5 m/s?
  1. 1000 W
  2. 500 W
  3. 200 W
  4. 400 W

Questions & Step-by-Step Solutions

If a cyclist is moving at a constant speed and exerts a force of 200 N, what is the power output if the speed is 5 m/s?
  • Step 1: Identify the formula for power, which is P = F * v.
  • Step 2: Understand that P is power, F is force, and v is speed.
  • Step 3: Substitute the given values into the formula: F = 200 N and v = 5 m/s.
  • Step 4: Calculate the power: P = 200 N * 5 m/s.
  • Step 5: Perform the multiplication: 200 * 5 = 1000.
  • Step 6: Conclude that the power output is 1000 W.
  • Power Calculation – Power is calculated as the product of force and velocity (P = F * v).
  • Units of Measurement – Understanding the units of force (Newtons) and speed (meters per second) and how they relate to power (Watts).
  • Constant Speed – Recognizing that the cyclist's constant speed implies that the net force acting on the cyclist is zero.
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