Question: If two objects are moving in opposite directions with speeds of 40 m/s and 60 m/s, what is their relative speed?
Options:
20 m/s
40 m/s
60 m/s
100 m/s
Correct Answer: 100 m/s
Solution:
Relative speed = Speed of object 1 + Speed of object 2 = 40 m/s + 60 m/s = 100 m/s.
If two objects are moving in opposite directions with speeds of 40 m/s and 60 m/
Practice Questions
Q1
If two objects are moving in opposite directions with speeds of 40 m/s and 60 m/s, what is their relative speed?
20 m/s
40 m/s
60 m/s
100 m/s
Questions & Step-by-Step Solutions
If two objects are moving in opposite directions with speeds of 40 m/s and 60 m/s, what is their relative speed?
Correct Answer: 100 m/s
Step 1: Identify the speeds of the two objects. Object 1 is moving at 40 m/s and Object 2 is moving at 60 m/s.
Step 2: Since the objects are moving in opposite directions, we need to find their relative speed.
Step 3: To find the relative speed, add the speed of Object 1 to the speed of Object 2.
Step 4: Calculate the sum: 40 m/s + 60 m/s = 100 m/s.
Step 5: The relative speed of the two objects is 100 m/s.
Relative Speed – Relative speed is the speed of one object as observed from another object, calculated by adding their speeds when they are moving towards or away from each other.
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