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4 marksMomentum

CSEC Physics · May/June 2016 · Paper 2 · Question 2(c)(ii)

An 8 kg ball travelling to the east at 10 ms⁻¹, collides with a 2 kg ball travelling to the west with a velocity of 5 ms⁻¹. After the collision, they move together. Assume that there are no resistive forces.

Determine the final velocity of the balls.

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Other parts of this question

  1. 2(a)Complete the bubbles in Figure 1 by inserting the SI unit which matches EACH of the physical quantities.[2 marks]
  2. 2(b)(i)State Newton's third law of motion.[3 marks]
  3. 2(b)(ii)With the aid of a diagram, and using Newton's third law of motion, explain how this happens.[4 marks]
  4. 2(c)(i)Define the term 'linear momentum'.[2 marks]

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