A chain of length 1 and mass m lies on the surface of a smooth sphere of radius Rgt1 with one end tied to the top of the space. A particle is projectd from a point at an angle with the horizontal at t=0. At an instant t, if p is linear momentum x is horizontal displacement y is vertical displacement and E is kinetic energy of the particle, then whcih of the following are correct?

A chain of length 1 and mass m lies on the surface of a smooth sphere

1.	A chain of length 1 and mass m lies on the surface of a smooth sphere of radius Rgt1 with one end tied to the top of the space. A particle is projectd from a point at an angle with the horizontal at t=0. At an instant t, if p is linear momentum x is horizontal displacement y is vertical displacement and E is kinetic energy of the particle, then whcih of the following are correct?
Answer» mass of the body `m=P^(2)//2E` `U ` is the initial SPEED `u^(2)=2gy+((2E)/(p))^(2)` WORK done by the gravitationa force is `-P^(2)gy//2E` Angle of elevation of the particle as SEEN from the point of PROJECTION from ground is `tan^(-1)(y//x)` Answer :A::B::C::D