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One second after the projection, a stone...

One second after the projection, a stone moves at an angle of ` 45^@` with the horizontal. Two seconds from the start,
it is travelling horizontally. Find the angle of projection with the horizontal. `(g=10 ms^(-2))`.

A

`60^(@)`

B

`tan^(-1)(4)`

C

`tan^(-1)(3)`

D

`tan^(-1)(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH INSTITUTE-MOTION IN A PLANE-Assignement section -B Objective (one option is correct)
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  2. A particle moves along the positive branch of the curve y = (x^(2))/(2...

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  3. One second after the projection, a stone moves at an angle of 45^@ wi...

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  4. The horizontal range of a projectile is R and the maximum height attai...

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  5. The speed of a projectile when it is at its greatest height is sqrt(2/...

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  6. If the horizontal range of a projectile be a and the maximum height at...

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  9. A particle is thrown with the speed u at an angle alpha with the horiz...

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  10. A projectile is thrown with an initial velocity (v(x)hati + v(y)hatj) ...

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  11. A particle is projected with a velocity of 30 m/s at an angle theta...

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  12. A projectile has same range for two angules of projection. If times of...

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  13. A particle is projected with velocity 50 m/s at an angle 60^(@) with...

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  14. A projectile is fired to have maximum range 500 m. Maximum height atta...

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  15. A particle projected at some angle with velocity 50 m/s crosses a 20 m...

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