A kg trolley moving at m s⁻¹ collides with a stationary kg trolley. They stick together. Calculate their common velocity.
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12 questions
In a perfectly elastic collision,
Salam Academy Original Practice · Proposed mark scheme
Which statement about collisions between two objects in an isolated system is always true?
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An SI unit equivalent to kg m s⁻¹ is
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For the same collision ( kg at m s⁻¹ hits kg at rest; both move off at m s⁻¹), calculate the kinetic energy lost.
Salam Academy Original Practice · Proposed mark scheme
A kg trolley and a kg trolley are held together at rest with a compressed spring between them. When released, the kg trolley moves at m s⁻¹. Calculate the speed of the kg trolley.
Salam Academy Original Practice · Proposed mark scheme
Two balls approach each other head-on at m s⁻¹ and m s⁻¹ and collide perfectly elastically. State their relative speed of separation.
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A kg trolley at m s⁻¹ hits a stationary kg trolley and they stick together. Calculate the kinetic energy lost.
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A kg ball moving at m s⁻¹ collides head-on and perfectly elastically with a stationary kg ball. Calculate the final velocity of the kg ball.
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In the same collision, calculate the final velocity of the kg ball (positive in its original direction).
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A kg puck moving east at m s⁻¹ collides with a kg puck moving north at m s⁻¹. They stick together. Calculate their speed after the collision.
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A neutron (mass u) collides head-on and elastically with a stationary carbon nucleus (mass u). Calculate the fraction of the neutron's kinetic energy transferred to the carbon nucleus.
Salam Academy Original Practice · Proposed mark scheme