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1 of 8 0-day streak

Analyse straight-line motion through displacement, velocity and acceleration

Question 1 of 8

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The signed displacement of a moving point is modelled below. Time is measured in hours, and displacement is measured in kilometres

\[x(t)=t^{2} - 6\,t - 6\]

The stated time domain is shown below

\[t\in\left[0,5\right]\]

The table uses \(t=0\) and \(t=\frac{3}{2}\)

The table uses km for displacement, km/h for velocity and km/h² for acceleration
\(t\)\(x(t)\)\(v(t)\)\(a(t)\)
\(0\)enter valueenter valueenter value
\(\frac{3}{2}\)enter valueenter valueenter value
(a)6 marks

Complete the motion table

(b)1 mark

At \(t=\frac{3}{2}\), which direction is the point moving?

(c)1 mark

Which condition identifies a time when the point is at rest?