Scalars, vectors and equilibriumAQA A-Level Physics: Mind map

Exam questions on Scalars, vectors and equilibrium

1. A hiker walks 6.0 km due east and then 8.0 km due north, taking 2.0 hours in total, and stops.
   Calculate the direction of the hiker's displacement, giving your answer as an angle east of north.2 marks
2. A box of weight 60 N is at rest on a rough ramp that is inclined at 30° to the horizontal.
   The ramp is raised so that it is inclined at 40° to the horizontal and the box is still at rest. Calculate the frictional force acting on the box.2 marks
3. A lamp of weight 30 N hangs at rest from the middle of two identical light strings. Each string is attached to a ceiling hook and makes an angle of 25° with the horizontal. The lamp and strings are in equilibrium.
   Calculate the tension in each string.3 marks