JEE Main & Advanced
Physics
Rotational Motion
JEE PYQ-Rotational Motion
question_answer
A tennis ball (treated as hollow spherical shell) starting from O rolls down a hill. At point A the ball becomes air borne leaving at an angle of \[{{30}^{0}}\] with the horizontal. The ball strikes the ground at B. What is the value of the distance AB? (Moment of inertia of spherical shell of mass m and radius R about its diameter \[=\frac{2}{3}{{\operatorname{mR}}^{2}})\] [JEE ONLINE 22-04-2013]
A) 1.87 m
B) 2.08 m
C) 1.57 m
D) 1.77 m
Correct Answer:
B
Solution :
[b] of the tennis ball on the surface of the earth or ground