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a particle is projected with an velocity an velocity u m/s making an angle​​​​​ “B” with horizontal. find average velocity of particle between the point of projection and the highest point of trajectory

ayush , 6 Years ago
Grade 11
anser 1 Answers
Mohammed Kasib Siddiqui

Last Activity: 6 Years ago

Let the highest point be P and point of projection be O. The the time of flight is given by T=2usinB÷g
. Let the point Q be on the plane of projection such that it comes straight umder the pt. P .Join OPQ to form a triangle . Now PQ is the maximum height and OQ is half of range . Apply pythagoras theorem to find OP ie hypotenuse which will be our displacement.
Now avg. velocity=displacement÷time
Ie avg. velocity = OP÷ (usinB÷g)
As it is half of the range hence the time of flight is 
T=usinB÷g

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