Question

The horizontal range and maximum height attained by a projectile are R and H respectively, for angle of projection 60°. If angle of projection is made 30°, without change in its initial velocity then

Both H & R decrease

Both H & R Increase

'H' decreases but 'R' remains the same

'R' decreases but 'H' remains the same​

Answer 1

Answer:

R=2usinthetacostheta/g

So if angle decreased from 60 to 30 then value of sinthetacostheta remains unaffected so range same

Value of H decreases as H=u^2sin^2theta and sin 30<sin60

Answer is 3