Question

Please help me. I've been trying to find an answer for more than an hour now.

A Star fleet science officer drops a large rock from a height of 1.55 m onto the surface of an alien planet. The rock strikes the ground in 0.230 s. Determine the acceleration of gravity.

Answer 1

Answer:

58,60m.s-²

Explanation:

• use equation of motion (∆y=V∆t+1/2a∆t²)
• 1.55=(0)(0,230)+1/2a(0,230)²
• 1,55=0,02645a
• 1,55\0,02645=a
• a=58,60m.s-²