Motion in a Plane

Section: Physics

Question : 52 of 88

Marks: +1, -0

A projectile is projected with velocity of 25m∕s at an angle θ with the horizontal. After t seconds its inclination with horizontal becomes zero. If R represents horizontal range of the projectile, the value of θ will be :
[use g=10m∕s2 ]

[24-Jun-2022-Shift-1]

‌
1
2
sin−1(‌
5t2
4R
)
‌
1
2
sin−1(‌
4R
5t2
)
tan−1(‌
4t2
5R
)
cot−1(‌
R
20t2
)

Validate

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