Newton's Laws Centripetal Forces Friction Momentum and Impulse Law of Gravitation
A tendency to do nothing or remain unchanged
Inertia
Which direction is the acceleration vector pointing?
Center
What is static friction?
The amount of friction that opposes the initial motion of an object.
What is momentum?
Mass in motion
Which law can also be stated as The Law of Inertia
Newton's First Law of Motion
Which direction is the velocity vector pointing?
Tangent to the curve
What is the equation for finding kinetic friction?
Ff=uFn
If the force acting on an object is doubled how does this affect the impulse?
Doubled
Which law states: "when an unbalanced force acts on an object, the object will be accelerated"
Newton's Second Law of Motion
What is the tension in a string used to twirl a 0.3 kg ball at a speed of 2 m/s in a circle of 1 meter radius?
1.2 N
A car tire sits on a dry highway. It has a weight of 500N. What frictional force will be produced as the object begins to move?
3,350 N
An object of mass,10 kg, is accelerated at a rate of 26 m/s/s. What force is acting on the object?
260 N
Calculate the centripetal force acting on a 925 kg car as it rounds an unbanked curve with a radius of 75 m at a speed of 22 m/s
5, 960 N
An unbalanced force acts on an object with a magnitude of 75N. The frictional force works against the 5kg object, that is accelerating at a rate of 2 m/s/s. What is the net force?
10 N
If the force of gravity acting of an object is 98 N, there will be a 98 N force in the opposite direction. Which law makes this possible?
Newton's Third Law
An car (m=2000 kg) moves in a circle whose radius is 200 m. If the force acting on the car is 3600 N, what is its speed?
18.9 m/s