Two spheres of the same size, one of mass 5 kg and the other of mass 50 g are dropped simultaneously from a tower. When they are about to touch the ground, they have the same:
Correct answer: D. Acceleration
- A. Kinetic Energy
- B. Potential Energy
- C. Momentum
- D. Acceleration
- E. All given options
Explanation
KE, PE and momentum will be different because they depend on mass. The acceleration of the object is independent tof mass rather only dependent on the gravitational field strength which is same for both.
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Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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