When two bodies move in the same direction, their relative speed is equal to
Athe sum of their speeds
Bthe product of their speeds
Cthe difference of their speeds
Dhalf the difference of their speeds
Answer & Solution
Correct answer: C. the difference of their speeds
For motion in the same direction, one body gains on the other only by the excess of its speed over the other's speed. Hence the relative speed is the difference of their speeds.
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