IB Physics Resultant force
/A tutorial sheet on resultant force is given below.
- Define the word force.
- Define resultant force.
- A mass on the end of a rod moves in uniform circular motion in a vertical circle. Which of the following are constant in magnitude? (a) the velocity of the mass (b) the acceleration of the mass (c) the force exerted by the rod on the mass (d) the resultant force acting on the mass.
- A mass is placed at rest on a vertical spring that has its upper end fixed. The mass is pulled down and released from rest. Draw a free-body diagram showing the forces acting on the mass when (a) it is held at rest and (b) after it is released from rest.
- A smooth rod of length 2L rotates about a vertical axis through its centre in a horizontal plane at a constant angular speed. A particle can slide along the rod. Describe the subsequent movement of the particle if it is released from rest (relative to the rod) at (a) the centre of the rod (b) a distance L/2 from the centre of the rod.
- In question 5 (b) what is the force that makes the particle slide along the rod? Is this force constant in magnitude?
