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What is the maximum range of projectile projected with velocity numerically equal to g?


The maximum range of projectile projected with velocity numerically equal to 9.8 is  'g' (i.e., 9.8) meter.

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What is the angular velocity in radian per second of a flywheel making 300 r.p.m? 

Here, 

Frequency = 300 r.p.m = 

Angular velocity of the flywheel,  



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Two projectiles are projected from the ground simultaneously with speeds 30 m/s and 20 m/s at angle 60o and 30o with the horizontal in the same direction. Find the maximum distance between them on ground where they strike. 

Horizontal range is given by, 

 

This is the required maximum distance between the two projectiles when they strike the ground. 

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The horizontal range of projectile is 4 times the maximum height attained by the projectile. What is the angle of projection?

Given, 

Horizontal range is equal to 4 times the maximum height attained by the projectile. 

Therefore, 



So, angle of projection is 45°.
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The range of a particle, when launched at an angle of 15o with the horizontal, is 1.5 km. What is the range of the projectile when launched at an angle of 45o to the horizontal? 


Given that, 


 

Horizontal range for angle of projection 45o will be, 




That is the range of projectile is 3 km. 

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