Vectors
Forces
Graphs
Newton's Laws
Problems
100
Which way will the box move? The length of the arrow shows magnitude (amount) of force.
To the left
100
What is the unit for Force?
Newtons (N)
100
Which Graph Represents the relationship between Centripetal Force and Velocity.
Quadratic
100
According to Newton's First Law the microwave on top of the car falls forward when the car stops because...
An object in motion remains in motion.
100
What would be the force of a 100 kg person accelerating at 10 m/s/s
1,000 N
200
What is the net force on this object?
25N Right
200
A force that opposes motion
Friction
200
If y represents the Force of Gravity between two objects, then x represents..
The Distance
200
According to Newton's 3rd Law. The balloon will propel forward in response to the exhaust gases because...
For every action there is an equal and opposite reaction.
200
The 500 N box is moving with constant velocity 10m/s when we apply a Force F=100N at 60 degrees. What is the Force of Friction.
Friction is 50N
300
What is the horizontal component of the applied Force shown above.
Fx=230N
300
It's usually the first we do in a problem involving Forces..
Free Body Diagram
300
What is the direction of Velocity and Centripetal Force at the top of the roller coaster.
Right and Down/Center of the circle
300
Which object has more Inertia. A 5000kg track moving at 30miles/hour or a 1500kg car moving at 80miles/hour.
A 5000kg track moving at 30miles/hour
300
We apply a 50N force to spin a 4kg object in a circle with radius r=2m. What is the speed of the object?
v=5m/s
400
What is the magnitude and direction of the Force we need to add to be in equilibrium?
13N South-East
400
If we double the mass of both spheres and also double the distance. The Force of Gravity between them will...
Remain the same.
400
In a Spring Force vs Elongation plot the slope of the graph represents..
The spring constant
400
A girl weighing 600N pushes a car with a weight of 5000N with a Force of 100N. How much force does the car exert on the girl.
100N
400
A 500N person is on a scale inside an elevator that is accelerating downwards with a=2m/s^2. The scale reads?
Fn=400N
500
What angle will the resultant Force form with the horizontal axis?
22.6 degrees
500
What is the minimum coefficient of Friction a 1000kg car needs to take a 20m radius turn with a velocity v=10m/s?
about 0.5
500
A 500kg car follows the plot above. What is the net Force from 0s-4s.
1500N
500
Compare to the boy the girl will experience less/more/equal Force and less/more/equal Acceleration.
Same Force and Larger Acceleration.
500
We push a 500N box with a 200N Force on a surface with a 0.3 coefficient of Friction. What is the acceleration of the box?
a=1 meter/second^2