Question

Question 2 of 20:

Select the best answer for the question.
2. A moon rock has a mass of 125 kg. What's the force of gravity acting on the rock, on the moon?
O A. 1225 N
OB. 78.125 N
O C. 1,960 N
O D. 200 N

Answer 1

Answer: 78.125N

The force of gravity acting on the rock is: 204.375N

None of the Given Options match this value, However, OPTION (B) is the CLOSEST.

Therefore, the BEST ANSWER is OPTION (B): 78.125N

Explanation:

• MAKE A PLAN: Use the Formula for the FORCE of GRAVITY:

FORCE = MASS * GRAVITY

F = m * g

• Where, F = Force of Gravity
• Where, m = Mass
• Where, g = Acceleration Due to Gravity on The Moon

• SOLVE THE PROBLEM:

• (1) - The Acceleration due to gravity on the Moon is about 1/6 of that on Earth, So:

gmoon = 9.81 / 6

= 1.635m/s^2

• (2) - Calculate the Force of Gravity Acting on the Rock:

F = 125 * 1.635

F = 204.375N - Force of Gravity Acting on The Rock

• Draw the Conclusion:

The force of gravity acting on the rock is: 204.375N

None of the Given Options match this value, However, OPTION (B) is the CLOSEST.

Therefore, the BEST ANSWER is OPTION (B): 78.125N

I hope this helps you!

Answer 2

its a cause the moon