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 20 m/s, then the velocity of the sphere at this instant will be: |
A) 20 m/s
B) 15 m/s
C) 5 m/s
D) 10 m/s
Correct Answer: B
Solution :
\[20\,\,\sin 37=V\,\,cos37\] |
\[V=20\,\,\tan 37\] |
\[V=20\times \frac{3}{4}\] |
\[V=15\,\,m/s\] |
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