Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will:
Keep floating at the same distance between them
Move towards each other
Move away from each other
Will become stationary
B.
Move towards each other
Both the astronauts are in the condition of weightness. Gravitational force between them pulls towards each other
A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which one of the following will not be affected?
Which of the following statements is correct?
(a) Centre of the mass of a body always coincides with the centre of gravity of the body.
(b) Centre of the mass of a body is the point at which the total gravitational torque on the body is zero
(c) A couple on a body produce both translational and rotational motion in a body.
(d) Mechanical advantage greater than one means that small effort can be used to lift a large load.
Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will:
Mock Test Series
