- 1(current)
Q. No.If a particle is projected vertically upward with a speed \(u,\) and rises to a maximum altitude \(h\) above the earth's surface then (\(g=\) acceleration due to gravity at surface)
| 1. | \(h>\frac{u^2}{2g}\) |
| 2. | \(h=\frac{u^2}{2g}\) |
| 3. | \(h<\frac{u^2}{2g}\) |
| 4. | Any of the above maybe true, depending on the earth's radius |
A body weighs \(63\) N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth?
1. \(98\) N
2. \(35\) N
3. \(63\) N
4. \(28\) N
Assuming the earth to be a sphere of uniform mass density, how much would a body weigh halfway down to the centre of the earth if it weighed \(250\) N on the surface?
1. \(250\) N
2. \(125\) N
3. \(175\) N
4. \(145\) N
Starting from the centre of the earth, having radius \(R,\) the variation of \(g\) (acceleration due to gravity) is shown by:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.