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Home/energy and power/Page 2

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gagan23
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gagan23
Asked: January 14, 2025In: Class-11-Physics

Two bodies of masses m and 4m. are moving with equal kinetic energies. The ratio of their linear momenta is

Linear momentum is the product of a body’s mass and velocity, representing the quantity of motion. It is a vector quantity, having both magnitude and direction. Momentum is conserved in isolated systems, making it crucial in understanding collisions and dynamics. ...

class 11 physicsenergy and powerlinear momentawork
  • 1 1 Answer
  • 7 Views
  • 1 Vote
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Bhupendra
Poll
Bhupendra
Asked: January 14, 2025In: Class-11-Physics

A particle of mass m moving with velocity v collides with a stationary particle of mass 2 m. After collision, the speed of the combined particle is

Collisions occur when two or more bodies come into contact, resulting in an exchange of momentum and energy. They can be elastic, where kinetic energy is conserved, or inelastic, where kinetic energy is not conserved. Understanding collisions is essential in ...

class 11 physicscollidesenergy and powerwork
  • 1 1 Answer
  • 9 Views
  • 1 Vote
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Bhupendra
Poll
Bhupendra
Asked: January 14, 2025In: Class-11-Physics

A body moves a distance 0f 10 m along a straight line under the action of a 5 N force. If the work done is 25 J, then angle between the force and direction of motion of the body is

The direction of motion refers to the path along which an object moves. It is determined by the object’s velocity vector, indicating both speed and the angle at which it travels. Understanding the direction of motion is essential in analyzing ...

class 11 physicsdirection of motionenergy and powerwork
  • 1 1 Answer
  • 8 Views
  • 1 Vote
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kiku12
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kiku12
Asked: January 13, 2025In: Class-11-Physics

Which of the following is true?

Work, energy and power are fundamental concepts in physics. Work is done when a force causes displacement. Energy is the capacity to perform work, existing in forms like kinetic and potential energy. Power is the rate at which work is ...

class 11 physicsenergyenergy and powerwork
  • 1 1 Answer
  • 25 Views
  • 1 Vote
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kiku12
Poll
kiku12
Asked: January 13, 2025In: Class-11-Physics

A spring 40 mm long is stretched by the application of a force. If 10 N force is required to stretch the spring through 1 mm, then work done in stretching the spring through 40 mm is

Force is a physical quantity that causes an object to change its state of motion or rest. It is a vector quantity characterized by both magnitude and direction. Forces can be categorized as contact forces and non-contact forces such as ...

class 11 physicsenergy and powerforcework
  • 1 1 Answer
  • 19 Views
  • 1 Vote
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