A sphere of radius R is in contact with a wedge. The point of contact is R//5 from the ground as shown in the figure. Wedge is moving with velocity 20m//s, then the velocity of the sphere at this instant will be

A sphere of radius R is in contact with a wedge. The point of contact

1.	A sphere of radius R is in contact with a wedge. The point of contact is R//5 from the ground as shown in the figure. Wedge is moving with velocity 20m//s, then the velocity of the sphere at this instant will be
Answer» `20m//s` `15m//s` `5m//s` `10m//s` Solution :Let `v` be velocity of SPHERE `sin theta =(4)/(5), cos theta=(3)/(5)` From WEDGE CONSTRAINT `,` `V=20cot theta` `V=20xx(3)/(4)=2.5m//s.`