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A ball is dropped from the top of a tower . if the distance travelled by the ball in the last second of the fall is 14.7 m, find the height of the tower. |
| Ans: Let two heights will be H1 and H2 ,where H1 is the height of the tower, H1=4.9t2 H2=4.9(t-1)2 14.7= H1-H2 t=2 H1=4.9 t2 = 19.6 m |
