JEE · NEET Previous Year Question
A body projected vertically from the earth reaches a height equal to earth’s radius before returning to the earth. The power exerted by the gravitational force is greatest
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- Aat the highest position of the body.
- Bat the instant just before the body hits the earth.
- Cit remains constant all through.
- Dat the instant just after the body is projected.
Correct answer: B
Solution
(b): Power,Just before hitting the earth . Hence, the power exerted by the gravitational force is greatest at the instant just before the body hits the earth.
More Work, Energy & Power PYQs
- An elevator in a building can carry a maximum of persons, with the average mass of each person being . The mas…
- A particle is released from height above the surface of the earth. At certain height its kinetic energy is three times its po…
- A particle experiences a variable force in a horizontal x-y plane. Assume distance in meters and force is new…
- The energy required to break one bond in DNA is J. This value (in eV) is nearly [NEET 2020]
- A particle moves from a point to when a force of is a…