You have landed on an unknown planet, newtonia, and want to know what objects will weigh there. you find that when a certain tool is pushed on a frictionless horizontal surface by a 12.7 n force, it moves 16.1 m in the first 2.50 s, starting from rest. you next observe that if you release this tool from rest at 10.3 m above the ground, it takes 2.88 s to reach the ground.

Refer to the diagram shown.

Because the surface is frictionless, the resistive for, R, is zero.

Let m = the mass of the object.

Let a = acceleration due to the applied force.

Therefore

12.7 N = (m kg) * (a m/s²)

a = 12.7/m m/s²

The object travels 16.1 m in 2.5 s, starting from rest. Therefore

16.1 N = (1/2) * (12.7/m m/s²) * (2.5 s) ² = 39.6875/m N

m = 16.1/39.6875 = 0.4057 kg

For freefall, let g = acceleration due to gravity.

The time to fall from 10.3 m is 2.88 s, therefore

10.3 m = (1/2) * (g m/s²) * (2.88 s) ² = 4.1472g m

g = 10.3/4.1472 = 2.484 m/s²

Answer:

The gravitational acceleration on the planet is 2.5 m/s² (nearest tenth)