◈ Oracle Prep Sign Up Free

O-LevelPhysicsForces5054/11 · Oct/Nov 2011 · Q41 Mark

The propeller on a boat pushes water backwards with a force of 2000 N. The boat moves through the water against a total resistive force of 1800 N. According to Newton's third law, what is the forward force on the propeller due to the water?

Diagram for this question, from the exam paper

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A200 N

B1800 N

C2000 N

D3800 N

✓ Correct answer

C: 2000 N

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Forces and see which topics are most likely to come up next.

Sign up free →

About this question

Topic: Forces, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2011 Paper 1 Variant 1, question 4.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Physics questions

ForcesMay/June 20101m

A passenger is sitting in an aeroplane, which takes off and climbs to 10 000m. During this time, what happens to the …

ForcesMay/June 20101m

A wooden trapdoor is hinged along one side and, when closed, is supported on the other side by a ledge. When the trap…

ForcesMay/June 20101m

Which part of the graph shows the limit of proportionality for an elastic solid?

KinematicsMay/June 20111m

A car accelerates from traffic lights for 10 s. It stays at a steady speed for 20 s and then brakes to a stop in 3s. …

KinematicsMay/June 20111m

Which vehicle has an acceleration of 5 m/s²?

MeasurementMay/June 20111m

A student collects stones and finds their density. Which apparatus is needed to measure the mass and the volume of th…

← Browse all past-paper questions