Question

A particle of mass M is projected with a velocity U at an angle Alpha with the horizontal work done by gravity during its Descent from its highest point to the position where the velocity vector makes an angle alpha by two with horizontal is​

Answer 1

Answer:

dw= F.dr

Explanation:

mass=m

V=u

theta=alpha

.

Answer 2

Answer:as the horizontal component will not change u can find final velocity then u can use work energy theorem