Equations of uniformly accelerated motion
2 marks · EasyA child on a scooter starts from rest and accelerates uniformly at 2 m/s² over a distance of 8 m. Calculate the speed she is travelling at the end of the 8 m.
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m/s (to 2 significant figures) m/s (±0.1)
Also accept: 5.66 m/s; 5.66; 5.7
Common mistakes: Incorrect use of formula (not squaring/finding root)
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Marking points
M1 · 1 mark · Substitutes correct values into formula
A1 · 1 mark · Correctly calculates m/s (accept 5.66 m/s or higher precision)
Worked solution
Use
To 2 significant figures, m/s.