Question

On the moon, a feather is dropped from a height of 1.40 m. The acceleration of gravity on the moon is -1.67 m/s2. Determine the time it takes for the feather to fall to the surface of the moon.

Answer 1

1.29 s

Step-by-step explanation:

• Height = 1.40m
• Acclⁿ due to gravity = 1.67 m/s²
• Time of descent = ?

As we know that ,

`\sf\longrightarrow Time_(descent)= \sqrt{(2H)/(g_((moon)))}\\\\\sf\longrightarrow t_d = \sqrt{( 2* 1.4)/(1.67)} \\\\\sf\longrightarrow t_d =√(1.67) s\\\\\sf\longrightarrow \boxed{\red{\sf Time_(descent)= 1.29 s }}`