DP Physics (first assessment 2025)

Question 20N.2.SL.TZ0.a(iii)

Date	November 2020	Marks available	[Maximum mark: 3]	Reference code	20N.2.SL.TZ0.a(iii)
Level	SL	Paper	2	Time zone	TZ0
Command term	Determine	Question number	a(iii)	Adapted from	N/A

a(iii).

[Maximum mark: 3]

20N.2.SL.TZ0.a(iii)

Determine $v$ . State your answer to an appropriate number of significant figures.

[3]

Markscheme

«lift force/change of momentum in one second» $= 1.7 v$ ✓

$1.7 v = (0.95 + 0.45) \times 9.81$ ✓

$v = 8.1 « {ms}^{- 1} »$ AND answer expressed to $2$ sf only ✓

Allow $8.2$ from $g = 10 m s^{- 2}$ .

Examiners report

This was answered well with many getting full marks. A small number gave the wrong number of significant figures and some attempted to answer using kinematics equations or kinetic energy.

Syllabus sections

A. Space, time and motion » A.2 Forces and momentum

Question 20N.2.SL.TZ0.a(iii)

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