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A boy wants to throw a letter wrapped ov...

A boy wants to throw a letter wrapped over a stone to his friend across the street 40 m wide. The boy's window is 10 m below the friend's window. How should he throw the ball ?

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The correct Answer is:
`(u=31.29 ms^(-1),theta=26^(@)34)`
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SL ARORA-PROJECTILE MOTION-Problem For Self Practice
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  2. Two particles are thrown from the same point with the same velocity of...

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  3. A boy wants to throw a letter wrapped over a stone to his friend acros...

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  4. Find the angle of projection for a projectile motion whose rang R is (...

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  5. A body A of mass m is thrown with velocity upsilon at an angle of 30^(...

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  6. The greatest height to which a boy can throw a stone is (h). What will...

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  7. A ball of mass (m) is thrown vertically up. Another ball of mass 2 m ...

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  8. As shown in Fig. 5.29, a body is projected with velocity u(1) from the...

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  9. The kinetic energy of a projectile at the highest point of its path is...

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  14. The seocnd-hand of a watch is 3.0 cm long. Calculate the linear speed ...

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  15. Calculate the centripetal acceleation of a point on the equator of ear...

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