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A child is riding a bicycle at 5 m/s on a moving bus that travels at 15 m/s in t

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Question: A child is riding a bicycle at 5 m/s on a moving bus that travels at 15 m/s in the same direction. What is the child\'s speed relative to the ground?

Options:

  1. 10 m/s
  2. 15 m/s
  3. 20 m/s
  4. 5 m/s

Correct Answer: 20 m/s

Solution: 

The child\'s speed relative to the ground is 15 m/s + 5 m/s = 20 m/s.

A child is riding a bicycle at 5 m/s on a moving bus that travels at 15 m/s in t

Practice Questions

Q1
A child is riding a bicycle at 5 m/s on a moving bus that travels at 15 m/s in the same direction. What is the child's speed relative to the ground?
  1. 10 m/s
  2. 15 m/s
  3. 20 m/s
  4. 5 m/s

Questions & Step-by-Step Solutions

A child is riding a bicycle at 5 m/s on a moving bus that travels at 15 m/s in the same direction. What is the child's speed relative to the ground?
  • Step 1: Identify the speed of the bus. The bus is moving at 15 m/s.
  • Step 2: Identify the speed of the child on the bicycle. The child is riding at 5 m/s.
  • Step 3: Since both the bus and the child are moving in the same direction, you need to add their speeds together.
  • Step 4: Add the speed of the bus (15 m/s) to the speed of the child (5 m/s).
  • Step 5: Calculate 15 m/s + 5 m/s = 20 m/s.
  • Step 6: The child's speed relative to the ground is 20 m/s.
  • Relative Velocity – Understanding how to calculate the speed of an object in relation to another moving object.
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