Motion in a Plane - Result Question 32

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35. A missile is fired for maximum range with an initial velocity of $20 m / s$. If $g=10 m / s^{2}$, the range of the missile is

======= ####35. A missile is fired for maximum range with an initial velocity of $20 m / s$. If $g=10 m / s^{2}$, the range of the missile is

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/motion-in-a-plane/motion-in-a-plane—result-question-32.md (a) $40 m$

(b) $50 m$

(c) $60 m$

(d) $20 m$

[2011]

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Answer:

Correct Answer: 35. (a)

Solution:

  1. (a) For maximum range, the angle of projection, $\theta=45^{\circ}$.

$\therefore R=\frac{u^{2} \sin 2 \theta}{g}$

$ =\frac{(20)^{2} \sin (2 \times 45^{\circ})}{10}=\frac{400 \times 1}{10}=40 . $