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Motion in A Plane question

2010 · Q100

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Physics
Motion in A Plane
2010 · Q100

Motion in A Plane question

2010 · Q100

NEETPhysicsMotion in A PlaneMCQ+4 / −1

The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is

A
60^o
B
15^o
C
30^o
D
45^o

View written solutionFree

Correct answer: A

Let v be velocity of a projectile at maximum height H.

AIPMT 2010 Mains Physics - Motion in a Plane Question 33 English Explanation

v = ucos

\theta

According to given problem,

v = {u \over 2}

\therefore

{u \over 2} = u\cos \theta \Rightarrow \cos \theta = {1 \over 2} \Rightarrow \theta = 60^\circ

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