Newton's Law & Order
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BUM BUM
Diagram me like one of your Free Bodies, Jack
May the mass times acceleration be with you
You spin my head right round
100
How many laws of motion are there?
3
100
How many forces are there going to be in the free body diagram for a solid steel sphere falling towards Earth's surface? Neglect air resistance.
One
100
A block of mass m is pulled at constant velocity along a rough horizontal floor by and applied force T at an an angle θ. The magnitude of frictional force is:
T cosθ
100
When an object experiences uniform circular motion, the direction of the net force is:
Directed towards the center
200
A person is pushed forward into their seatbelt when a car moving rightward stops. If the car relative to the Earth is accelerating at a rate of a = 5 m/s2 to the left, what acceleration does the person have relative to the car?
5 m/s2 to the right
200
A bird sits on a power cable between two posts. The power cable sags. What forces is the bird experiencing?
Two tensions and its weight
200
A 5 kg block is pulled across a table by a force of 61 N. The coefficient of static friction is 0.2. Calculate the acceleration of the object.
10.2 m/s2
200
During the spin cycle of a washing machine, the clothes stick to the outer wall of the barrel as it spins at a rate as high as 1800 revolutions per minute. The radius of the barrel is 26 cm. Determine the speed of the clothes (in m/s) which are located on the wall of the spin barrel.
49 m/s
300
A box is being pushed against a wall by a force F. If the coefficient of static friction between the box and the wall is μ, what expression represents what the force must be for the box not to fall?
F=mg/μ
300
A box slides down the ramp. Calculate the component of the weight that accelerates the box down the ramp.
10 N
300
A plane 5 meters in length is inclined at an angle of 37 degrees, as shown above. A block of weight 20 newtons is placed at the top of the plane and allowed to slide down. The magnitude of the normal force exerted on the block by the plane is most nearly 
16 N
300
One end of a 1.0-m string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a vertical circle, passing the bottom point at 4.0 m/s. The tension force of the string at this point is:
51.6 N
400
A particle of mass m moves along a straight path with speed v defined by v = bt2 − c, where b and c are constants and t is time. What is the magnitude F of the net force on the particle at time t = t1?
2mbt1
400
Here's a conical pendulum moving in uniform circular motion. In which direction is the acceleration pointing?
Acc. pointing towards the left.
400
A constant force F is applied to a body of mass m that initially is headed east at velocity v0 until its velocity becomes −v0. The total time of travel is 2t. The total distance the body travels in that time is:
F t2/m
400
A 1600kg car is traveling over a hill that has a radius of curvature of 25m. The car is slowing down as it goes over the hill. It slows down at a constant rate from a speed of 25m/s to a speed of 10m/s over a distance of 50m ending at the top of the hill. The net acceleration of the car at the top of the hill is most nearly...
6.6 m/s2
500
When the frictionless system shown is accelerated by an applied force F, the tension in the string between the blocks is... 
F/3
500
Imagine you were looking at the bus from the front. The angle of incline the bank makes with the horizontal is 20 degrees. If the bus is traveling at its maximum speed, which direction is static friction pointing in respect to the positive horizontal?
.
200 degrees
500
The tension in a string from which a 4.0-kg object is suspended in an elevator is equal to 44 N. What is the acceleration of the elevator?
1.2 m/s2 upward
500
An airplane travels 80 m/s as it makes a horizontal circular turn which has a 0.80-km radius. What is the magnitude of the resultant force on the 75-kg pilot of this airplane?
600 N