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A ballon is rising with a velocity of 9.8 m/s and a bag is dropped from it when it is at a height of 39.2 m. Calculate the time taken by the bag to reach the ground. |
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Answer» SOLUTION :TAKING vector quantities in the upward DIRECTION as negative and DOWNWARD as positive Now u = -9.8 m / s G =9.8 m/s^2, S = 39.2 m `S = ut+1/2 g t^2, 39.2 = -9.8t+1/2t^2, or t^2-2t-8=0 or t=4s` |
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