4. The distance between two particles is decreasing at the
rate of 6 m/sec. If these particles travel with same speeds
and in the same direction, then the separation increase at
the rate of 4 m/sec. The particles have speeds as
(a) 5 m/sec, 1 m/sec (b) 4 m/sec; 1 m/sec
(c) 4 m/sec; 2 m/sec
(d) 5 m/sec; 2 m/sec
A hoat moves with a speed of 5 km/h relative to water in
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Answer:
(a) 5 m/sec, 1 m/sec
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