Free Body Diagrams
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance. A free-body diagram for this situation looks like this:
Fair pointing up and Fgrav pointing down
What is the symbol that stands for momentum in equations?
P
What is the equation used for force?
F=m*a
Name the type of friction that occurs when an object is overcoming friction to start moving.
Static Friction
STEELERS AND PATRIOT
A rightward force is applied to a book in order to move it across a desk at constant velocity. Consider frictional forces. Neglect air resistance. A free-body diagram for this situation looks like this:
Fair=up
Fgrav=down
Fapp= right
Ffrict= Left
What is the formula for momentum?
P=m*V
What unit is force measured in?
Newtons
What is the type of friction that is occurring as an object is in motion?
Kinetic Friction
How many stomachs does a cow have?
4
A force is applied to the right to drag a sled across loosely packed snow with a rightward acceleration. Neglect air resistance. A free-body diagram for this situation looks like this:
Fgrav= down
Fapp= right
Ffrict= left
A bowling ball has a mass of 5 kg. It is moving at a velocity of 10 m/s down the lane. What is the momentum of the bowling ball?
50 kg.m/s
An object is pushed and reaches an acceleration of 5 m/s2 forward. If the object has a mass of 7 kg, what force was applied to that object?
7*5= 35N
Which has more friction: a flat book or a school bus?
School Bus
How many chromosomes do you have in your DNA?
46
A football is moving upwards towards its peak after having been booted by the punter. Neglect air resistance. A free-body diagram for this situation looks like this:
Fgrav= down
A 2 kg frisbee is thrown in the air. The velocity of the frisbee is 25m/s. What is the momentum of the frisbee?
50 kg.m/s
A bear has a mass of 25 kg when they are fully grown. If the acceleration due to gravity downward is 9.81 m/s2 downward, what is the force of the bear on the ground?
245N
What is the one part of the car that utilizes friction?
Tires/brakes
How far is a marathon?
26.2 miles
A car is coasting to the right and slowing down. Neglect air resistance. A free-body diagram for this situation looks like this:
Ffrict= left
fnorm= up
fgrav=down
A car is traveling at a velocity of 30 m/s. The mass of the car is 100 kg. What is the momentum of the car?
A force of 20 N forward acts on a baseball, if the baseball has a mass of 4 kg, what acceleration does it experience?
5 m/s2
What is the force that friction acts in the opposite direction of in free body diagrams?
Applied Force
What was the number one downloaded app of 2020?
Tik Tok