Home
Class 11
PHYSICS
Statement I: If a particle projected hor...

Statement I: If a particle projected horizontally just above, the surface of the earth with a speed greater than escape speed, then it will escape from gravitational influence of the earth. Assume that particle has a clear path.
Statement II: Escape velocity is independent of its direction.

A

Statement I is True, Statement II is True: Statement II is a correct explanation for Statement I.

B

Statement I is True, Statement II is True: Statement II is Not a correct explanation for Statement I.

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is True.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements provided: **Statement I:** If a particle is projected horizontally just above the surface of the Earth with a speed greater than escape speed, then it will escape from the gravitational influence of the Earth, assuming that the particle has a clear path. **Statement II:** Escape velocity is independent of its direction. ### Step-by-Step Solution: 1. **Understanding Escape Velocity:** - Escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a celestial body without any additional propulsion. - For Earth, the escape velocity is approximately 11.2 km/s. 2. **Analyzing Statement I:** - If a particle is projected horizontally with a speed greater than the escape velocity, it means that the particle has enough kinetic energy to overcome the gravitational potential energy of the Earth. - Therefore, the particle will indeed escape the gravitational influence of the Earth, provided there are no other forces acting on it (like air resistance or obstacles). 3. **Analyzing Statement II:** - Escape velocity is a scalar quantity and does not depend on the direction of the projection. Whether the object is thrown vertically, horizontally, or at any angle, as long as it reaches the escape velocity, it will escape Earth's gravity. - This confirms that escape velocity is independent of direction. 4. **Conclusion:** - Both statements are true. Statement II correctly explains Statement I, as it clarifies that the direction of projection does not affect the escape velocity. ### Final Answer: - Statement I is true. - Statement II is true. - Statement II is the correct explanation for Statement I. Thus, the correct option is: **Option 1: Statement I is true. Statement II is true. Statement II is the correct explanation for Statement I.**

To solve the question, we need to analyze both statements provided: **Statement I:** If a particle is projected horizontally just above the surface of the Earth with a speed greater than escape speed, then it will escape from the gravitational influence of the Earth, assuming that the particle has a clear path. **Statement II:** Escape velocity is independent of its direction. ### Step-by-Step Solution: ...
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    CENGAGE PHYSICS ENGLISH|Exercise Linked Comprehension|23 Videos
  • GRAVITATION

    CENGAGE PHYSICS ENGLISH|Exercise Integer|5 Videos
  • GRAVITATION

    CENGAGE PHYSICS ENGLISH|Exercise Multiple Correct|24 Videos
  • FLUID MECHANICS

    CENGAGE PHYSICS ENGLISH|Exercise INTEGER_TYPE|1 Videos
  • KINEMATICS-1

    CENGAGE PHYSICS ENGLISH|Exercise Integer|9 Videos

Similar Questions

Explore conceptually related problems

At what angle with the horizontal should a projectile be fired with the escape velocity to enable it escape from gravitational pull of the earth ?

By how much percent does the speed of a satellite orbiting in circular orbit be increased so that it will escape from the gravitational field of the earth ?

By how much percent does the speed of a satellite orbiting in circular orbit be increased so that it will escape from the gravitational field of the earth ?

The escape velocity of a particle of a particle from the surface of the earth is given by

A particle is projected vertically upwards the surface of the earth (radius R_(e)) with a speed equal to one fourth of escape velocity what is the maximum height attained by it from the surface of the earth?

If a body is projected with speed v greater than escape speed v_(e) from the surface of earth, find its speed in intersteller space.

A body is projected horizontally from the surface of the earth (radius = R ) with a velocity equal to n times the escape velocity. Neglect rotational effect of the earth. The maximum height attained by the body from the earth s surface is R//2 . Then, n must be

The value of escape speed from the surface of earth is

A body is projected vertically upwards from the surface of the earth with a velocity equal to half of escape velocity of the earth. If R is radius of the earth, maximum height attained by the body from the surface of the earth is

A body is projected upwards with a velocity of 4 xx 11.2 "km s"^(-1) from the surface of earth.What will be the velocity of the body when it escapes from the gravitational pull of earth ?