A body is dropped from a $100 m$ high eliff and at the same time another body is thrown from the ground with $25 m / s$ velocity in upward direction. Where the two will meet?

50 m

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40 m

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20 m

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10 m

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Solution

The correct option is C $20 m$

12gt2+(25t−12gt2)=100
t=4s
Distance from ground 25×4−12(10)(4)2=20m

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A body is dropped from a 100m high eliff and at the same time another body is thrown from the ground with 25m/s velocity in upward direction. Where the two will meet?

The correct option is C 20m12gt2+(25t−12gt2)=10012gt2+(25t−12gt2)=100t=4st=4sDistance from ground 25×4−12(10)(4)2=20m

A body is dropped from a $100 m$ high eliff and at the same time another body is thrown from the ground with $25 m / s$ velocity in upward direction. Where the two will meet?

The correct option is C $20 m$

12gt2+(25t−12gt2)=100
t=4s
Distance from ground 25×4−12(10)(4)2=20m