Further Mechanics

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  1. State the conservation for momentum
    In a collision momentum within any plane is always conserved. The total momentum of a system is constant, unless acted on by and external force.
  2. What is conserved during elastic and non-elastic collisions ?
    In Elastic collisions both momentum and Kinetic energy is conserved

    In inelastic collisions momentum is conserved but kinetic energy is not conserved
  3. What is centripetal force ?
    Centripetal force is the resultant force (towards the centre) required by any mass to move in a circular path at a constant speed. (It is constant in magnitude, but keeps changing direction to point towards the centre. Therefore it does no work)

    Image Upload  Image Upload
  4. What is Angular Speed (ω) ?
    The angle rotated per second in radians per second. (rad s-1)

    ω=Image Upload  v=rω   ω=2Image Uploadf
  5. What is linear speed?
    Tangential velocity at radius, r from the centre of rotation. (v=rω)
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Further Mechanics
2014-03-14 10:17:52
A2 Physics

General questions on further mechanics
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