-
A projectile is fired from the surface of the earth with a velocity of 5 ms–1 and angle θ with the horizontal. Another projectile fired from another planet with a velocity of 3 ms–1 at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of the acceleration due to gravity on the planet is (in ms–2) given g = 9.8 m/s2
-
- 3.5
- 5.9
- 16.3
- 110.8
Correct Option: A
| Horizontal range = | so g μ u2 | |
| g |
| = | = | |||
| gearth | (uearth)2 |
| Therefore gplanet = |  |  | 2 | (9.8 m / s2) | |
| 5 |
= 3.5 m/s2)
