Motion
Kinematics
Dynamics
Energy
Misc
100
Which of the following terms are vectors? Mass, Speed, Velocity, Distance, Displacement, Acceleration, Time, Force, & Intertia
Velocity, Displacement, Acceleration, & Force,
100
What has to be constant to be able to use kinematic equations?
Acceleration
100
What is the net force acting on an object with a mass of 420 grams that accelerates from rest to a speed of 10 m/s in 5 seconds.
What is 0.84 m/s^2
100

What is the kinetic energy of a 14 kg jaguar that is running at a speed of 15 m/s? 

KE= 1575 J

100

Convert 500 gal/min to L/s.

31.5 L/s

200
Convert 50 gals/hour to mL/second
52.6 mL/s
200
A motorcycle accelerates forward at 3 m/s^2 from an initial speed of 4 m/s to a final speed of 22 m/s. What is the displacement of the motorcycle during this period?
78 m
200
What are Newton's Three Laws of Motion?
An object at rest stays at rest F=ma Equal and Opposite Reaction
200

What is the mechanical energy of a 3 kg bird flying at a speed of 10 m/s at a height of 6 m? 

ME= 326.4 J

200
A 45 kg object is initially traveling at 2 m/s forwards when a 30 N force is applied in the same direction. What is the speed after 2 seconds? 

v= 6 m/s

300
A hiker walks 3 miles north then 4 miles east then 5 miles south. What is his distance and displacement?
12 miles, 4.5 miles
300
The acceleration due to gravity on the moon is 1.62 m/s^2. If you drop a hammer from a height of 3 meters how fast would it be moving right before it hit the ground?
3.1 m/s
300

The acceleration due to gravity on the moon is 1.62 m/s^2. If an object weighs 50 N on earth how much does it weigh on the moon?

8.26 N

300

A 5kg block is initially at rest on a frictionless surface. A 30 N force is applied to it (forwards) and the block accelerates over a distance of 10 m. What is the work done to the block? What is the final speed of the block? 

W= 300 N

v= 10.9

300

A hiker walks 14 miles north then 9 miles east in 10 hours. What was his speed and velocity?

s= 2.3 mph v= 1.7 mph

400
A man starts 150 meters away from his house. He starts to walk towards his house at a constant speed of 2.5 m/s. What is his equation of motion?
xf = 150 -2.5t or xf =-150 +2.5t
400
A model rocket flies horizontally off the edge of a cliff at a velocity of 45.0 m/s. If the canyon below is 100.0 m deep, how far from the edge of the cliff does the model rocket land?
203 m
400
The coefficient of static friction between wood and concrete is 0.58. The coefficient of kinetic friction is 0.3. You apply a 30 N force to a 5 kg block of wood sitting on concrete. What is the force of friction acting on the block?
14.7 N
400

The Earth has a mass of 5.97 x 10^24 kg. It orbits the sun at a distance (radius) of 1.9 x 10^11 m. It takes 365 days to compleate 1 revolution.

What is the speed the earth goes around the sun? What is the kinetic energy of the earth? 

v= 38,000 m/s

KE= 4.3 x 10^33

400

A 1300 kg car is moving forwards at a speed of 15 m/s when it colides with a 1900 kg truck moving at a speed of 3 m/s backwards. Afterwards the cars speed is 1 m/s forwards. What is the speed of the truck afterwards? 

v=10.6 m/s forwards

500
A truck travels at a speed of 40 mph. How long (in seconds) does it take the truck to travel 800 meters?
44.7 seconds
500
An 5kg object is at rest when it experiences an applied force of 20N. The coefficient of kinetic friction between the object and the horizontal surface is 0.2. How far does the object travel after 60 seconds?
3672 m
500
A 10 Kg block is at rest on a level surface. It accelerates from rest to 51.2 m/s in 8 seconds when you exert a force of 100 N on it sideways. What is the acceleration, force of friction, coefficient of friction, normal force, and weight acting on the block?
a= 6.4 m/s2 Fk= 36 N uk= 0.37 Fn= 98 N Fg= 98 N
500
A 10 kg box experiences four forces. F1 = 40 N and is directed forwards. F2= 100 N is directed downwards. F3= 10 N and is directed backwards. F4 = 100 N and is directed upwards. The box moves forwards 60 m.

What is the work done by each force? What is the net work done? What is the final speed of the box if it starts from rest? 

W1= 2400 J    W2= 0J   W3= -600 J   W4= 0J

Wnet= 1800 J

v= 19 m/s

500

A ball is kicked off the ground at a speed of 20 m/s at and angle of 30 degrees. What is the time in the air and range of the ball? 

t= 2.04 x= 35.3 m

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