NEET 2014 Physics question
A projectile is fired from the surface of the earth with a velocity of and angle with the horizontal. Another projectile fired from another planet with a velocity of 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 ) is (given )
Answer: (1)
Solution
The trajectory equation is . For identical trajectories with the same , the coefficient of must be equal, so is the same on both bodies: . \dfrac${9.8
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