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3 Mechanics

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Question 67

A particle P P\,P moves in a straight line with constant velocity. Initially P P\,P is at the point AAA, with position vector (4i−3j)(4\mathbf{i} - 3\mathbf{j})(4i−3j) m. At time t=3t = 3t=3 s, P P\,P is at the point BBB, with position vector (−5i+9j)(-5\mathbf{i} + 9\mathbf{j})(−5i+9j) m.

a.

Find the velocity of PPP.

[2]
b.

At time t=5t = 5t=5 s, P P\,P is at the point CCC. Find the distance ACACAC.

[3]
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3 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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