359619 A projectile is fired from the surface of the earth with a velocity of \(5\;m{s^{ - 1}}\)and angle \(\theta\) with the horizontal. Another projectile fired from another planet with a velocity of \(3\;m{s^{ - 1}}\) 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 \(m{s^{ - 2}}\)) (given \(g = 9.8\;m{s^{ - 2}}\) )

359620 If the change in the value of \({g}\) at a height \({h}\) above the surface of the earth is the same as at a depth \({x}\) below it, then \({(x}\) and \({h}\) being much smaller than radius of earth)

359621 The time period of a simple pendulum at the centre of the earth is

359622 Assertion :
In the case of free fall of the lift, the man will feel weightlessness.
Reason :
In free falling, acceleration of lift is equal to acceleration due to gravity.

359619 A projectile is fired from the surface of the earth with a velocity of \(5\;m{s^{ - 1}}\)and angle \(\theta\) with the horizontal. Another projectile fired from another planet with a velocity of \(3\;m{s^{ - 1}}\) 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 \(m{s^{ - 2}}\)) (given \(g = 9.8\;m{s^{ - 2}}\) )

359620 If the change in the value of \({g}\) at a height \({h}\) above the surface of the earth is the same as at a depth \({x}\) below it, then \({(x}\) and \({h}\) being much smaller than radius of earth)

359621 The time period of a simple pendulum at the centre of the earth is

359622 Assertion :
In the case of free fall of the lift, the man will feel weightlessness.
Reason :
In free falling, acceleration of lift is equal to acceleration due to gravity.

359619 A projectile is fired from the surface of the earth with a velocity of \(5\;m{s^{ - 1}}\)and angle \(\theta\) with the horizontal. Another projectile fired from another planet with a velocity of \(3\;m{s^{ - 1}}\) 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 \(m{s^{ - 2}}\)) (given \(g = 9.8\;m{s^{ - 2}}\) )

359620 If the change in the value of \({g}\) at a height \({h}\) above the surface of the earth is the same as at a depth \({x}\) below it, then \({(x}\) and \({h}\) being much smaller than radius of earth)

359621 The time period of a simple pendulum at the centre of the earth is

359622 Assertion :
In the case of free fall of the lift, the man will feel weightlessness.
Reason :
In free falling, acceleration of lift is equal to acceleration due to gravity.

359619 A projectile is fired from the surface of the earth with a velocity of \(5\;m{s^{ - 1}}\)and angle \(\theta\) with the horizontal. Another projectile fired from another planet with a velocity of \(3\;m{s^{ - 1}}\) 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 \(m{s^{ - 2}}\)) (given \(g = 9.8\;m{s^{ - 2}}\) )

359620 If the change in the value of \({g}\) at a height \({h}\) above the surface of the earth is the same as at a depth \({x}\) below it, then \({(x}\) and \({h}\) being much smaller than radius of earth)

359621 The time period of a simple pendulum at the centre of the earth is

359622 Assertion :
In the case of free fall of the lift, the man will feel weightlessness.
Reason :
In free falling, acceleration of lift is equal to acceleration due to gravity.