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(01a) A bullet thrown vertically upwards with a speed of 19.6 ms-lform the top of a tower returns to the earth in 6 s. Find theheight of the tower.b) A man can through a ball to a maximum horizontal distance of100 m. To what maximum height can he thrown the same ball? |
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Answer» Answer: 294m,50m Explanation: a) Considering -y direction as POSITIVE, s = ut +1/2at^2 h = (-19.6)x6 + 1/2x 9.8x 6^2 h= 294m b) MAXIMUM RANGE = u^2 /g = 100m maximum height = u^2 /2g = 100/2= 50m |
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