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Two observers are moving towards each other at speeds of 20 m/s and 30 m/s. What

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Question: Two observers are moving towards each other at speeds of 20 m/s and 30 m/s. What is the relative velocity of one observer with respect to the other?

Options:

  1. 10 m/s
  2. 20 m/s
  3. 50 m/s
  4. 60 m/s

Correct Answer: 50 m/s

Solution: 

Relative velocity = Velocity of observer 1 + Velocity of observer 2 = 20 m/s + 30 m/s = 50 m/s.

Two observers are moving towards each other at speeds of 20 m/s and 30 m/s. What

Practice Questions

Q1
Two observers are moving towards each other at speeds of 20 m/s and 30 m/s. What is the relative velocity of one observer with respect to the other?
  1. 10 m/s
  2. 20 m/s
  3. 50 m/s
  4. 60 m/s

Questions & Step-by-Step Solutions

Two observers are moving towards each other at speeds of 20 m/s and 30 m/s. What is the relative velocity of one observer with respect to the other?
  • Step 1: Identify the speeds of the two observers. Observer 1 is moving at 20 m/s and Observer 2 is moving at 30 m/s.
  • Step 2: Understand that when two objects are moving towards each other, their relative velocity is the sum of their speeds.
  • Step 3: Add the speeds of both observers together: 20 m/s + 30 m/s.
  • Step 4: Calculate the sum: 20 + 30 = 50 m/s.
  • Step 5: Conclude that the relative velocity of one observer with respect to the other is 50 m/s.
  • Relative Velocity – The concept of relative velocity involves calculating the velocity of one object as observed from another object's frame of reference, taking into account their respective speeds and directions.
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