Physics SL (FE2025)
Paper 2
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Physics SL (FE2025)
Available time 20 Minute(s)
01

A block X slides along a horizontal frictionless surface towards a stationary block Y.

Paper 2
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Available time 20 Minute(s)
01. Question
Level Medium
Maximum Mark 12
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A block X slides along a horizontal frictionless surface towards a stationary block Y, as illustrated below.

There are no resistive forces acting on block X as it moves towards block Y. At time t = 0, block X has momentum 0.40kgms−1. A short time later, the blocks collide and then separate.

The variation with time t of the momentum of block Y is shown below.

(a) Define linear momentum.

[Marks: 2]

Use the graph to:

(b) (i) Determine the time interval over which the blocks are in contact with each other.

[Marks: 2]

(b) (ii) Describe, without calculation, the magnitude of the acceleration of block Y from

  • Time t = 80ms to t = 100ms.
  • Time t = 100ms to t = 120ms.

 

[Marks: 2]

(c) Use the graph to determine the magnitude of the force exerted by block X on block Y.

[Marks: 3]

(d) State the variation of the momentum of block X with time t from t = 60 to t = 100ms.

[Marks: 3]
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