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?
Practice Questions
1 question
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?
10 m/s
20 m/s
50 m/s
60 m/s
Relative velocity = Velocity of observer 1 + Velocity of observer 2 = 20 m/s + 30 m/s = 50 m/s.
Questions & Step-by-step Solutions
1 item
Q
Q: 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?
Solution: Relative velocity = Velocity of observer 1 + Velocity of observer 2 = 20 m/s + 30 m/s = 50 m/s.
Steps: 5
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.
