A hollow sphere has radius 6.4 m. what is the minimum velocity require

1.	A hollow sphere has radius 6.4 m. what is the minimum velocity required by a motorcyclist at bottom to complete the circle. (Ans: V=17.7 m/s )
Answer» Explanation: To COMPLETE the CIRCLE, R mv 0 2 =mg⇒v 0 2 =gR Now, from conservation of energy: K 1 +∪ 1 =K 2 +∪ 2 2 1 mv 2 +0= 2 1 mv 0 2 +mg(2R) ⇒v 2 =gR+4gR⇒v= 5gR ⇒v= 5×10×6.4 =17.7m/s solution

A hollow sphere has radius 6.4 m. what is the minimum velocity required by a motorcyclist at bottom to complete the circle. (Ans: V=17.7 m/s )

Answer»

Explanation:

To COMPLETE the CIRCLE,

=mg⇒v

=gR

Now, from conservation of energy:

+∪

+0=

+mg(2R)

⇒v

=gR+4gR⇒v=

5gR

⇒v=

5×10×6.4

=17.7m/s

solution

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A hollow sphere has radius 6.4 m. what is the minimum velocity required by a motorcyclist at bottom to complete the circle. (Ans: V=17.7 m/s )​

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A hollow sphere has radius 6.4 m. what is the minimum velocity required by a motorcyclist at bottom to complete the circle. (Ans: V=17.7 m/s )