Friction

If I am pulling to the right which way does friction pull?
1. Left
2. Right
If I pull to the left, friction pulls which direction?
1. Left
2. Right
When do you add static and kinetic friction?
1. When calculating acceleration.
2. When deciding if an object will move.
3. Never.
4. When calculating net force.
How much force would be necessary to start this object sliding?
1. 50 N
2. 60 N
3. 10 N
4. 70 N
5. 120 N
How much force would be necessary to keep this object sliding?
1. 50 N
2. 60 N
3. 10 N
4. 70 N
5. 120 N
What would be the net force on this object when moving?
1. -50 N
2. 60 N
3. 10 N
4. -40 N
5. 110 N
If this object is at rest, will it start sliding?
1. Yes
2. No
How much force would be necessary to start this object sliding?
1. 60 N
2. 50 N
3. 15 N
4. 75 N
5. 125 N
6. 35 N
Would this object remain stationary?
1. Yes
2. No
How much force would be necessary to keep this object sliding?
1. 60 N
2. 50 N
3. 15 N
4. 75 N
5. 125 N
6. 35 N
When calculating acceleration, what is the net force on this object?
1. 60 N
2. 50 N
3. 15 N
4. 75 N
5. 125 N
6. 35 N
Given the direction of friction, which way must the object be moving?
1. Left
2. Right
If this object were moving to the left, which way would Fk be pulling?
1. Left
2. Right
How much force is necessary to make this object slide?
1. 25 N
2. 20 N
3. 10 N
4. 30 N
5. 5 N
6. 55 N
7. 15 N
How much force is required to keep this object sliding?
1. 25 N
2. 20 N
3. 10 N
4. 30 N
5. 5 N
6. 55 N
7. 15 N
If the object is moving, what is the net force?
1. 25 N
2. 20 N
3. 10 N
4. 30 N
5. 5 N
6. 55 N
7. 15 N
If this object where stopped. Would it begin to move again?
1. Yes
2. No
How much force is necessary to start this object moving?
1. 18 N
2. 12 N
3. 7 N
4. 19 N
5. 25 N
6. 6 N
7. -11 N
8. 37 N
How much force is necessary to keep this object moving?
1. 18 N
2. 12 N
3. 7 N
4. 19 N
5. 25 N
6. 6 N
7. 11 N
8. 37 N
What is the net force on this object when it is moving?
1. 18 N
2. 11 N
3. 7 N
4. 19 N
5. 25 N
6. 6 N
7. -11 N
8. 37 N
If this object was at rest, how much additional positive force would be necessary to start it sliding?
1. 60 N
2. 50 N
3. 15 N
4. 10 N
5. 125 N
6. 35 N