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A projectile is fired from the surface o...

A projectile is fired from the surface of the earth with a velocity of `7 ms^-1` and angle `theta`with the horizontal. Another projectile fired from another planet with a velocity of `2.5 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^-1` (given `=9,8 ms^-2`)

A

9.8

B

0.98

C

16.3

D

1.25

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