A body is thrown up with with velocity u. it reaches maximum height h. If velocity of projection is doubled the maximum height is..

4h

Explanation:

Given

The body is thrown vertically upward with velocity u and reaches a height of h

The relation between u and h is given by

Put in above equation

If the velocity of projection is doubled i.e. 2u

The maximum height becomes 4h

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

answer: he got 23

explanation: