Scalars, vectors and resolving vectorsEdexcel International A Level Physics: Mind map

Exam questions on Scalars, vectors and resolving vectors

1. A hiker walks 3.0 km due east and then 4.0 km due north, taking 2.0 hours in total.
   Calculate the hiker's average speed and the magnitude of the hiker's average velocity.2 marks
2. A child pulls a sledge across level snow using a rope. The tension in the rope is 80 N and the rope is at 30° above the horizontal.
   The child lifts the handle so that the rope is at 45° above the horizontal, with the tension unchanged. Calculate the new horizontal component of the tension.2 marks
3. A boat has a speed of 3.0 m s⁻¹ relative to the water and is steered at right angles to the banks of a straight river. The river flows at 1.5 m s⁻¹ parallel to the banks.
   Calculate the magnitude and direction of the resultant velocity of the boat relative to the bank.3 marks