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Edexcel A-Level Physics AS 1.3.5 Resolving Vectors Questions

Practise resolving forces and velocities into perpendicular components, choosing trigonometric ratios from diagrams and using components in calculations.

Syllabus
First assessment 2019
Course
Physics XPH11/YPH11
Level
AS

Exam points

  • choose sine or cosine components correctly from the angle shown in force diagrams
  • Calculate both perpendicular components of an initial velocity using the angle to the horizontal.
  • Use perpendicular force balance to calculate a tension or an unknown angle.
  • Add the components of two pulling forces in the required forwards direction.
  • Resolve gravitational acceleration along a frictionless slope and calculate its magnitude.
  • Explain how increasing cable sag reduces tension when the weight remains constant.
  • Sketch how the required launch speed changes with angle for a fixed vertical velocity component.

Edexcel A-Level Physics AS 1.3.5 Resolving Vectors Questions question 1

[Maximum number: 1]

Two boats A and B pull a ship. The forces from the boats are F_A and F_B. Which gives the forwards component of the total force?

Figure for Question Edexcel A-Level Physics AS 1.3.5 Resolving Vectors Questions question 1 — Edexcel A-Level Physics AS
A

FAsin⁡31∘+FBcos⁡27∘F_A\sin31^\circ+F_B\cos27^\circ

B

FAsin⁡31∘+FBsin⁡27∘F_A\sin31^\circ+F_B\sin27^\circ

C

FAcos⁡31∘+FBcos⁡27∘F_A\cos31^\circ+F_B\cos27^\circ

D

FAcos⁡31∘+FBsin⁡27∘F_A\cos31^\circ+F_B\sin27^\circ

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