Universal law of gravitation
- A body of mass 60 g experiences a gravitational force of 3.0 N, when placed at a particular point. The magnitude of the gravitational field intensity at that point is : Answer: 3. 50 N/kg Gravitational field intensity is force per unit mass: E=F/m . m=60\ g=0.06\ kg⇒ E=3.0/0.06=50\ N/kg . Option (3). Using 6... 1
- If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct ? Answer: 4. 'g' on the Earth will not change. Check each statement with M_sun→ M/10 and G→10G . The Earth's g=GM_e/R_e² becomes 10 times larg... 1
- Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will : Answer: 1. move towards each other. Key idea: the only force between the two astronauts is their mutual gravitational attraction. In free sp... 1