Question

A ball is projected vertically upwards with a certain initial speed. Another ball of the same mass is projectes
at an angle of 60° with the vertical with the same initial speed. At highest points of their journey, the ratio of
their potential energies will be:

(1) 1:1
(2) 2:1
(3) 3.2​

Answer 1

Answer:

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Explanation:

in first case ,

maximum height reached is u^2/2g

in second case

velocity in the vertical direction is u*cos60=u/2

ratio of maximum height reached in first case and second case =u^2/2g : (u/2)^2 / 2g 

so ratio of E.p1 and E.p2 = 1:4

Answer 2

Answer:

Refer to the attachments for the answer