1.

A ball is thrown vertically up (taken as + z-axis) from the ground. The correct momentum-height h diagram is:

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SOLUTION :`V^(2)=u^(2)-2gh rArr m^(2)v^(2)=m^(2)u^(2)-2mgh`
`rArr p^(2)=A-Bh` ( where `A=m^(2)u^(2), b=2mg`)
Cleary it is parabolic FUNCTIONS.
Starting from GROUND momentum first decreases and then becomes zero athighest position. Therefore it increases iin -ve DIRECTION. Hence `3^(rd)` option is correct.


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