Question

its urgent please give answer correctly ​

Answer 1

$\large\sf { t = \sqrt{ \frac{2h}{g}}}$

$\large\sf { \ and \ mw^{2} R = \mu mg}$

$\large\sf { \ so \ w = \sqrt { \frac{ \mu g}{R}}}$

$\large\sf { v = wr = \sqrt{R \mu g}}$

so range $\large\sf { = \sqrt{R \mu g} \times \sqrt{ \frac{2h}{g}}}$

$\large\sf { = \sqrt{ 2 \mu Rh}}$