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3 Mechanics

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Question 49

For a particle moving in a straight line, dsdt=7−2t\dfrac{ds}{dt}=7-2tdtds​=7−2t.

a.

State the physical quantity represented by dsdt\dfrac{ds}{dt}dtds​.

[1]
b.

Find the time at which the particle changes direction.

[2]
c.

State the SI unit of d2sdt2\dfrac{d^2s}{dt^2}dt2d2s​.

[1]
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3 Mechanics Questions

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

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