A particle of mass.m. is projected with a velocity .u. at an angle . theta. with the horizontal. Work done by gravity during its descent from its highest point to a point which is at half the maximum height is

A particle of mass.m. is projected with a velocity .u. at an angle . t

1.	A particle of mass.m. is projected with a velocity .u. at an angle . theta. with the horizontal. Work done by gravity during its descent from its highest point to a point which is at half the maximum height is
Answer» 0 `(mu^(2) SIN^(2)theta)/4` `1/2mu^(2) sin^(2)theta` `1/2mu^(2)cos^(2)theta` Answer :B