Question

Single Correct Answer Type
A projectile takes time $t$ to reach from $A$ to $B$. Distance $AB$ is equal to -

• A. $\frac{ut}{\sqrt{3}}$
• B. $\frac{\sqrt{3}ut}{2}$
• C. $\sqrt{3}ut$
• D. $2ut$

Answer 1

The correct option is A $\frac{ut}{\sqrt{3}}$

$S=vt$

$A{B}^{{}^{\prime }}=ucos60t$

$AB=\frac{A{B}^{{}^{\prime }}}{cos30}$

$AB=\frac{ucs60t}{cos30}=\frac{ut}{\sqrt{3}}$