DP Physics (first assessment 2025)

Question 20N.2.SL.TZ0.b

Date	November 2020	Marks available	[Maximum mark: 2]	Reference code	20N.2.SL.TZ0.b
Level	SL	Paper	2	Time zone	TZ0
Command term	Calculate	Question number	b	Adapted from	N/A

[Maximum mark: 2]

20N.2.SL.TZ0.b

The package and string are now released and fall to the ground. The lift force on the aircraft remains unchanged. Calculate the initial acceleration of the aircraft.

[2]

Markscheme

vertical force = lift force – weight OR $= 0.45 \times 9.81$ OR $= 4.4 « N »$ ✓

acceleration $= \frac{0.45 \times 9.81}{0.95} = 4.6 « {ms}^{- 2} »$ ✓

Syllabus sections

A. Space, time and motion » A.1 Kinematics

Question 20N.2.SL.TZ0.b

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