Skip to content

Course home

Sign up

2 Motion and forces

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109
Question 12

A lorry is driven at a constant speed of 20 m/s on a closed test track. A warning light comes on, and the lorry comes to rest 50 m beyond the point where the driver saw the light. The driver's reaction time was measured three times before the test.

MeasurementReaction time in s\mathrm{s}s
10.30
20.35
30.40

Using the mean reaction time, what is the braking distance of the lorry?

[1]
A

7 m7\ \mathrm{m}7 m

B

43 m43\ \mathrm{m}43 m

C

50 m50\ \mathrm{m}50 m

D

57 m57\ \mathrm{m}57 m

Markscheme

2 Motion and forces Questions

  1. GCSE
  2. /Physics
  3. /2 Motion and forces

Question bank