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Explanation:
choose two stones are thrown vertically upward the same only then you are sleep with their initial velocities U1 and U2 respectively find the ratio of the height reached by them
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Answer:
1) h=u×u÷2g
use this formula for u1 and u2
2) distance=400+200=600
speed=36km/h=36×5÷18=10m/sec
time =distance÷speed
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