NEETPhysicsRotational Motion
Assertion : A solid sphere and a ring of same mass and radius are released simultaneously from the top of an inclined surface. The two objects roll down the plane without slipping. They reach the bottom of the incline with equal linear speeds. Reason : Decrease in potential energy for both is the same.
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is NOT the correct explanation of (( A ) ).
- C(A) is true but (R) is false.
- DBoth (A) and (R) are false.
Correct answer
D. Both (A) and (R) are false.
Step-by-step solution
( 1 2 m v^2+ 1 2 I ^2=m g h ) (I ) is different for two bodies. Hence, (v ) and ( ) will be different, as (v=R )