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bittu45

Asked: January 10, 2025In: Class-11-Physics

Two particles which are initially at rest, move towards each other under the action of their internal attraction. If their speeds are v and 2v at any instant, then the speed of centre of mass of the system will be

The center of mass is the point where the total mass of a system can be considered concentrated for motion analysis. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

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bittu45

Asked: December 24, 2024In: Class-11-Physics

A ball is dropped from a spacecraft revolving around the earth at a height of 120 km. What will happen to the ball?

A spacecraft is a vehicle designed for travel in space, used for exploration, research, communication, and transportation of payloads. Class 11 Physics Gravitation CBSE EXAM 2024-25

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bittu45

Asked: December 24, 2024In: Class-11-Physics

The radius of earth is about 6400 km and that of mars is 3200 km. The mass of earth is about 10 times mass of mars. An object weighs 200 N on the surface of earth. Its weight on the surface of mars will be

The mass of Earth is approximately 5.97 x 10²⁴ kilograms, influencing its gravitational force and effects on nearby objects. Class 11 Physics Gravitation CBSE EXAM 2024-25

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bittu45

Asked: December 24, 2024In: Class-11-Physics

A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force exerted on it will be

Gravitational force exerted is the attraction between two masses, determined by their masses and the distance separating their centers. Class 11 Physics Gravitation CBSE EXAM 2024-25

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bittu45

Asked: December 24, 2024In: Class-11-Physics

The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2 m on the surface of A. What is the height of jump by the same person on the planet B?

Acceleration due to gravity is the rate at which objects accelerate toward the Earth, approximately 9.81 m/s² near the surface. Class 11 Physics Gravitation CBSE EXAM 2024-25

bittu45

Two particles which are initially at rest, move towards each other under the action of their internal attraction. If their speeds are v and 2v at any instant, then the speed of centre of mass of the system will be

A ball is dropped from a spacecraft revolving around the earth at a height of 120 km. What will happen to the ball?

The radius of earth is about 6400 km and that of mars is 3200 km. The mass of earth is about 10 times mass of mars. An object weighs 200 N on the surface of earth. Its weight on the surface of mars will be

A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force exerted on it will be

The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2 m on the surface of A. What is the height of jump by the same person on the planet B?

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