IB Physics Vectors

A sheet of practice questions on vectors is given below.

  1. A force of magnitude 5.0 N and a force of magnitude 4.0 N cannot be added together to give a force of magnitude (a) 0.5 N, (b) 1.5 N, (c) 3.0 N, (d) 7.0 N
  2. A block of mass 2.0 kg is at rest on a rough inclined plane that makes an angle of 20.0° with the horizontal. The coefficient of static friction between the surfaces is 0.30. What is the magnitude of the force of static friction acting on the block?
  3. A block of mass 1.50 kg is projected up a rough inclined plane of angle of elevation 25.0° at 12.0 m s -1. The coefficient of static and dynamic friction between the surfaces are 0.40 and 0.30 respectively. Find the time taken by the block to return to its starting point.