1.

If R is the maximum horizontal range of a particle, then the greatest height attained by it is :A. `R`B. `2R`C. `R//2`D. `R//4`

Answer» Correct Answer - d
`R=(u^(2))/g and H=(u^(2) sin^(2) theta)/(2g)`
For maximum range, ` theta=45^(@)`
`H=(u^(2) sin^(2) 45^(@))/(2g)=(u^(2))/(4g)=R/4`


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