A projectile is fired with velocity u at angle 45° with horizontal. Its time of flight is (g = 10 m/s²) MCQ with Answer and Explanation

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A projectile is fired with velocity u at angle 45° with horizontal. Its time of flight is (g = 10 m/s²)

A. u/5

B. √2 u/10

C. u/5√2

D. √2 u/5

Answer: Option B

Solution (By JKSSB Mock Tests)

T = 2u sinθ/g = 2u sin45°/10 = 2u(1/√2)/10 = √2 u/10. SSC often tests projectile basics.

This question belongs to: Science Physics

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Question #3

An echo returned in 0.5 s. If speed of sound is 340 m/s, the distance of reflecting surface is

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Correct Answer: Option C

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This question belongs to: Science Physics

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