NEET 2021 | Gravitation Question 16 | Physics

A particle of mass 'm' is projected with a velocity $$\upsilon $$ = kV_e = (k < 1) from the surface of the earth. (V_e = escape velocity)

The maximum height above the surface reached by the particle is :

$${{R{k^2}} \over {1 - {k^2}}}$$

$$R{\left( {{k \over {1 - {k^2}}}} \right)^2}$$

$$R{\left( {{k \over {1 + {k^2}}}} \right)^2}$$

$${{{R^2}k} \over {1 + k}}$$

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth?

32 N

30 N

24 N

48 N

NEET 2019

MCQ (Single Correct Answer)

-1

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :

mgR

2mgR

$${1 \over 2}$$mgR

$${3 \over 2}$$mgR

NEET 2019

MCQ (Single Correct Answer)

-1

A body weight 200 N on the surface of earth. How much will it weight half way down to the centre of the earth?

200 N

250 N

100 N

150 N

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NEET Subjects

Biology

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution