Physics (AS & A Level) · May / June 2024 · Paper 13 · Question 10

The diagram shows the view from above of a sprinkler system used to water a garden. The sprinkler consists of a tube of length 0.15 m. The tube is pivoted in the middle and spins in a horizontal plane as it lets out jets of water from each end. The two water jets are in opposite directions to each other. Each water jet exerts a horizontal force of 3.0 N on the tube at right angles to the tube. What is the magnitude of the torque on the tube from the water jets?

1. A0 N m
2. B0.23 N m
3. C0.45 N m
4. D0.90 N m

As printed in the paper