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From a balloon rising vertically upwards at 5m/s a stone thrown up at 10m/s relative to the balloon . Its velocity with respect to ground after 2s is |
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Answer» We have given: Speed of balloon w.r.t ground=5 m/s (Upwards) Speed of stone w.r.t balloon=10 m/s So, speed of stone w.r.t ground=10+5=15 m/s u=15 m/s (upwards) Using relation v=u+gt =15-10 x 2=-5 Thus the velocity of stone is 5 m/s (downwards) w.r.t to ground after 2 second. |
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