Question

A ball is projected from ground and it crosses point A and B which are on same level after 3 sec and 5 sec of projection.If ball is at half of max height at time t1 and t2,then find t1+t2/5

Answer 1

Answer:

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Answer 2

Answer:

a body is projected up, suppose it crosses a point P at time in its upward journey. The body will cross the same point P at time in its downward journey.

Now the equation of trajectory is,

Rearranging we get,

These two values of '' give the value of and

sum of the roots =

So, .............

Explanation:

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