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2.5 Stopping and braking distances

Question 8

One of four journeys made by a delivery lorry has a stopping distance of 65 m. When the lorry travels at speed $v\,$ and the driver's reaction time is $t$ , its thinking distance is 6.5 m and its braking distance is 26 m. The lorry's mass and braking force are unchanged for all four journeys. The conditions for the journeys are shown in the table.

Journey	Speed	Driver's reaction time
P	$1.5 v$	$t$
Q	$1.5 v$	$23t\dfrac{2}{3}t$
R	$2 v$	$t$
S	$v$	$2 t$

What is the label of the journey with this stopping distance?

[1]

Markscheme

2.5 Stopping and braking distances Questions

GCSE
Physics
2.5 Stopping and braking distances

126 exam-style questions on Edexcel GCSE Physics 2.5 Stopping and braking distances, covering 2.5.1 Stopping distance and reaction time, 2.5.2 Factors affecting stopping distance, 2.5.3 Dangers of large decelerations, and 2.5.4 Braking distance and initial speed. Each one has a worked solution and a mark scheme showing where the marks go.

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2.5 Stopping and braking distances

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Question 8

Journey	Speed	Driver's reaction time
P	$1.5 v$	$t$
Q	$1.5 v$	$23t\dfrac{2}{3}t$
R	$2 v$	$t$
S	$v$	$2 t$

What is the label of the journey with this stopping distance?

[1]

Markscheme

2.5 Stopping and braking distances Questions