Motion In Straight Line

Question

Two planets having masses M₁ and M₂ and radii R₁ and R₂ have equal acceleration due to gravity at the surface of planets. Find the ratio of masses of planets in terms of radii.

Solution

Acceleration due to gravity of the first planet of mass M₁and radii is,

Acceleration due to gravity of the second planet of mass M₂ and radius R₂ is,

straight g subscript 2 equals GM subscript 2 over straight R subscript 2 squared

Since

straight g subscript 1 equals straight g subscript 2 comma

therefore

GM subscript 1 over straight R subscript 1 squared equals GM subscript 2 over straight R subscript 2 squared

So,

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Some More Questions From Motion in Straight Line Chapter

When an object in motion can be considered as particle or point object?

Can you think of physical phenomena involving the moon in which moon cannot be treated as particle?

A train is crossing the bridge. Can it be taken as a particle?

Can a train be taken a particle? Give an example in support of your answer.

A particle is moving along curved line in space. Is the motion one dimensional?

State which of the following are examples of one, two or three dimensional motion:

(a) A kite flying in the sky.

(b) The earth revolving around the sun.

(c) A train moving along the equator of the earth in clockwise direction.

(d) Accelerated motion of a particle in a straight line.

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Motion In Straight Line

Two planets having masses M₁ and M₂ and radii R₁ and R₂ have equal acceleration due to gravity at the surface of planets. Find the ratio of masses of planets in terms of radii.

Some More Questions From Motion in Straight Line Chapter

When an object in motion can be considered as particle or point object?

Can you think of physical phenomena involving the moon in which moon cannot be treated as particle?

A train is crossing the bridge. Can it be taken as a particle?

Can a train be taken a particle? Give an example in support of your answer.

A particle is moving along curved line in space. Is the motion one dimensional?

State which of the following are examples of one, two or three dimensional motion:

(a) A kite flying in the sky.

(b) The earth revolving around the sun.

(c) A train moving along the equator of the earth in clockwise direction.

(d) Accelerated motion of a particle in a straight line.

Define distance.

Define displacement.

Can magnitude of displacement be greater than distance travelled by particle?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Motion In Straight Line

Two planets having masses M1 and M2 and radii R1 and R2 have equal acceleration due to gravity at the surface of planets. Find the ratio of masses of planets in terms of radii.

Some More Questions From Motion in Straight Line Chapter

When an object in motion can be considered as particle or point object?

Can you think of physical phenomena involving the moon in which moon cannot be treated as particle?

A train is crossing the bridge. Can it be taken as a particle?

Can a train be taken a particle? Give an example in support of your answer.

A particle is moving along curved line in space. Is the motion one dimensional?

State which of the following are examples of one, two or three dimensional motion: (a) A kite flying in the sky. (b) The earth revolving around the sun. (c) A train moving along the equator of the earth in clockwise direction. (d) Accelerated motion of a particle in a straight line.

Define distance.

Define displacement.

Can magnitude of displacement be greater than distance travelled by particle?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Two planets having masses M₁ and M₂ and radii R₁ and R₂ have equal acceleration due to gravity at the surface of planets. Find the ratio of masses of planets in terms of radii.

State which of the following are examples of one, two or three dimensional motion:

(a) A kite flying in the sky.

(b) The earth revolving around the sun.

(c) A train moving along the equator of the earth in clockwise direction.

(d) Accelerated motion of a particle in a straight line.