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A) \[{{v}_{1}}<{{v}_{2}}<{{v}_{3}}\]
B) \[{{v}_{1}}>{{v}_{2}}>{{v}_{3}}\]
C) \[{{v}_{1}}={{v}_{2}}>{{v}_{3}}\]
D) \[{{v}_{1}}={{v}_{2}}<{{v}_{3}}\]
Correct Answer: C
Solution :
Initially, the ball is moving on a smooth frictionless surface. Hence, speeds\[{{v}_{1}}\]and\[{{v}_{2}}\]will be equal. After the ball enters the grassy surface, its speed will decrease because of the friction between the ball and the grass. Hence, the relation among the speeds of the ball at the three given points is \[{{v}_{1}}={{v}_{2}}>{{v}_{3}}\]
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