Question

The gravity on the moon is 1.63 m/s^2. If a ball with a mass of 5 grams is dropped on the moon from a height of 1.5m . Determine the time for the ball to fall on the surface of the moon

Answer 1

Gives

Gravity of moon

g=a=1.63m/sec²

Mass(M)=5g=$5\times10^{-3}kg$

Hight(h)=1.5m

Newton's 2^nd law

$S=ut+\frac{1}{2}at^2$

$u=0m/sec$

$S=0+\frac{1}{2}at^2$

$t=\sqrt\frac{2S}{a}$

Put value

t$=\sqrt\frac{2\times1.5}{1.63}$

t=1.36 sec