AP EAMCET · PHYSICS · Motion In One Dimension
A car covers a distance at speed of . It returns and comes back to the original point moving at a speed of . If the average speed for the round trip is , then the magnitude of is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Let car covers a distance of s in straight line from point A to B & then comes back to point A. Average speed =total distance coveredtotal time taken. Now, time taken from A to B will be, s60. Time taken from B to A will be, sv. Therefore, 48=s+ss60+sv…
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