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Question
Two railway tracks are parallel to West - East direction. Along one track, train A moves with a speed of 30 m s-1 from West to East, while along the second track, train B moves with a speed of 48 m s-1 from East to West. Calculate
(i) relative speed of B w.r.t. A and (ii) relative speed of ground w.r.t B.
Two railway tracks are parallel to West - East direction. Along one track, train A moves with a speed of 30 m s-1 from West to East, while along the second track, train B moves with a speed of 48 m s-1 from East to West. Calculate
(i) relative speed of B w.r.t. A and (ii) relative speed of ground w.r.t B.
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Solution
Relative speed of B with respect to A is the sum of speeds of trains A and train B as they are moving in opposite direction, i.e. 30 + 48 = 78 m/s
Relative speed of ground with respect to train B is same as the speed of train B, i.e. 48 m/s
Relative speed of B with respect to A is the sum of speeds of trains A and train B as they are moving in opposite direction, i.e. 30 + 48 = 78 m/s
Relative speed of ground with respect to train B is same as the speed of train B, i.e. 48 m/s
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