AIPMT MAINS2009Physics-Kinematics
AIPMT MAINS 2009 Physics Relative Motion MCQ Question
Type: MCQ-numerical-Medium-Class 11
A bus is moving with a speed of 10 ms⁻¹ on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus?
A
40 ms⁻¹
B
25 ms⁻¹
C
10 ms⁻¹
D
20 ms⁻¹
Correct Answer
Option D
Detailed Explanation
To overtake the bus in 100 s, the scooterist needs to cover 1000 m more than the bus in the same time. Thus, speed = (1000 m + 1000 m) / 100 s = 20 ms⁻¹.
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