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  • A missile is launched at maximum range with an initial velocity of  <img alt="20 \frac{m}{s}" src="https://entrancecorner.oncod

A missile is launched at maximum range with an initial velocity of  20 \frac{m}{s}.

If  g=10\ \frac{m}{s^2}  , the range of the missile is:

Option: 1

50m


Option: 2

40m


Option: 3

60m


Option: 4

100m


Answers (1)

Answer: (2)40 m   

Explanation:

For maximum range of projectile \theta will be  45^{\circ} .

Now,

According to the law of Projectile motion:

  R_{max}=\frac{u^2}{g}            

Given that:

u=20\ ms^{-1} and \ \ g=10ms^{-1}    

  Or,         

R_{max}=\frac{\left(20\right)^2}{10}=\frac{400}{10}       

   Or,    R_{max}=40\ m           

Posted by

Ramraj Saini

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