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Standard XII

Physics

Applications of Horizontal and Vertical Components

A boy throws ...

Question

A boy throws a ball with a velocity u at an angle θ with the horizontal. At the same instant he starts running with uniform velocity to catch the ball before it hits the ground. To achieve this, he should run with a velocity of :

u cos $θ$

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u sin $θ$

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u tan $θ$

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$\sqrt{u^{2} t a n θ}$

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Solution

The correct option is A
u cos $θ$

The horizontal component of velocity of projection and the speed of the boy should be the same.

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A boy throws a ball with a velocity u at an angle θ with the horizontal. At the same instant he starts running with uniform velocity to catch the ball before it hits the ground. To achieve this, he should run with a velocity of :

The correct option is A u cos θ The horizontal component of velocity of projection and the speed of the boy should be the same.

The correct option is A
u cos $θ$

The horizontal component of velocity of projection and the speed of the boy should be the same.