Physics A: Problem Set 18: Friction
recommended reading
High Marks: | 1:107–1:108 |
Barron's Let's Review: | 3.8 Frictional forces, 3.9 The coefficient of friction |
physics.info: | Friction |
Wikipedia: | Friction |
HyperPhysics: | Friction |
Khan Academy: | Intuition on static and kinetic friction comparisons, Static and kinetic friction example, What are the forces of static and kinetic friction? |
Physics Girl: | Friction |
Mr. Machado: | 08 Friction and the coefficient of friction |
classwork
- A wooden pallet carrying a load of 600 kg rests on a wooden floor. A forklift driver decides to push it without lifting it.
- Draw a free body diagram showing all the forces acting on the pallet.
- What is the weight of the loaded pallet?
- What is the normal force of the floor on the pallet?
- What force must be applied by the forklift to overcome static friction and start the pallet moving?
- What is the new force of friction between the pallet and the floor?
- Determine the net force on the pallet.
- Determine the acceleration of the pallet.
- How fast is the pallet moving after two seconds?
- What is the new net force on the pallet?
- Determine the acceleration of the pallet.
- Determine the time it takes the pallet to stop sliding.
- Determine the distance it takes the pallet to stop.