DP Physics (first assessment 2025)

Question 22N.1A.SL.TZ0.8

Date	November 2022	Marks available	[Maximum mark: 1]	Reference code	22N.1A.SL.TZ0.8
Level	SL	Paper	1A	Time zone	TZ0
Command term		Question number	8	Adapted from	N/A

[Maximum mark: 1]

22N.1A.SL.TZ0.8

An engine is exerting a horizontal force $F$ on an object that is moving along a horizontal surface at a constant velocity $v$ . The mass of the object is $m$ and the coefficient of dynamic friction between the object and the surface is $μ$ .

What is the power of the engine?

A. $\frac{F v}{μ}$

B. $μ F v$

C. $\frac{m g v}{μ}$

D. $μ m g v$

[1]

Markscheme

Syllabus sections

A. Space, time and motion

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

A. Space, time and motion » A.3 Work, energy and power

Question 22N.1A.SL.TZ0.8

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