Physicshard · Past Paper
What is the value of 'g' at a height equal to twice the radius of Earth from the center?
Ag/2
Bg/4
Cg/8
Dg/9
✓ Correct Answer: B — g/4
If distance from center is 2R, g' = GM/(2R)^2 = g/4.
Share this question
More from Physics
- An object covers 1/4th of a circular path of radius r. The magnitude of its displacement is:
- Two resistors R1 and R2 are in parallel. If R1 > R2, then the power dissipated P1 and P2 will be such that:
- A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 m/s^2 for 8.0 s. How far does the boat travel during this time?
- Two bodies of masses 1 kg and 5 kg are dropped from the same height in vacuum. Which reaches the ground first?
- If a body covers a distance s in time t such that s = t^3, the acceleration is: