A student is asked to compare the masses of two objects. She holds one object in

Question

A student is asked to compare the masses of two objects. She holds one object in each hand and shakes them. The student is comparing Inertial masses Gravitational masses Both To create "artificial gravity" in a cylindrical space station located in deep space, the station is rotated about its long axis. A ball released near the axis, "falls" to the wall of the space station. As it falls, the magnitude of its acceleration Increases Decreases Remains steady A spaceship is resting on the surface of Mars where the acceleration due to gravity is 40% of that on Earth. If the astronauts think that they are accelerating through space, what would their acceleration be? 4 m/s2 8 m/s2 10 m/s2 40 m/s2

Explanation / Answer

11.

In this case, she is comparing inertial masses. When she shakes them, it is the inertia of rest for the two which is felt by the girl.

12.

As when cylinder rotates, centrifugal acceleration ac = v2/r and clearly when r increases ac decreases.

13.

As acceleration felt is acceleration at the surafce of moon hence it is (10 m/s2)*(40/100) = 4 m/s2.

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