unit 2
d=vi*t+1/2a*t^2
vf=vi+a*t
vf^2=vi^2+2a*d
d=((vi+vf)/2)*t
what is kinematics equations
F=m*a
newton's second law
what are vector's and scalars
what is vector's being numbers that can have a direction as in left right up or down and scalars being numbers that can't have direction and are just there
equation for work
what is F*x*cos(theta)
K=n/m
The Spring Constant
a cannon which can shoot a ball at 200m/s takes 15.3 seconds to hit a tree what was the acceleration of the ball from the cannon
what is 13.1
difference in static and dynamic movement
what is no movement for static and movement for dynamic
solve for x
2x+47*2= 92
what is -1
if a pulley has the power of 128 watts what's the velocity that a 420n force pull can pull it up.
what is .31m/s
elastic equation and definition
m1*v1+m2*v2
elastic problems are when an object will separate due to one having a greater speed or while standing still one moving suddenly then the other will go the other way
if a colt was running back to it's mom which is 229m away and was running at 2.74m/s how long would it have taken for the colt to get back to it's mom?
what is 83.6s
a moving with a force of 2849N to the east has a friction of 320N west what is the net force
what is 2529
397259297839238792350 is what in scientific notation
3.97x10^20
if you had a force pulling up on a object going to the right how much work is being done to the object
what is nothing
inelastic equation and definition
m1*v1+m2*v2=(m1+m2)v
when 2 objects moving to a point where contact is imminent will then stick together and remain connected
a ball hits the wall going 390m/s and a acceleration of 8.3. it also had a time of 29s. what was the initial velocity
what is 149m/s
what is the equation for force parallel and force perpendicular
Fg cos(Θ )=Fperpendicular
Fgsin(Θ )=Fparallel
a traveler travels 27.8 kilometers north then turns 128 degrees east and travels for 38.2 kilometers. what would the distance have been if the traveler walked straight from his start to his end
11.3 kilometers
if you roll a car with a mass of 2800kg down a closed system going 39m/s what was the initial height of the car
what is 77.7m
Mr. Smith was rolling a cart of books that had a mass of 30kg down the school hallways when he suddenly slips and pushes the cart faster down the hallway at 3m/s. luckily enough Mr James caught the cart 15s after it was propelled forward. what was the force the cart had before being stopped
what is 6n
a rabbit is running away from a wolf at 2.4m/s to it's hole which is 49m away. the wolf being 64m away from the hole is running at 3.7m/s will the rabbit make it to the hole before the wolf. and how much more time did he need to get to the hole before the wolf
a car going around a perfect circle track is traveling at an average speed of 294m/s. the car weights 1600kg in 28s. what is the radius of the circle
what is 8232m
how many nanometer is a meter
1x10^-9
if we had a car that pulled an 29kg object with a power of 1249w and 3290n of force over a 194s time span how far did the car move the object
what is 73.7m
a cannon with a 20kg ball fires with the force of 16000N and a recoil of 6cm. the ball fly's 375m with a acceleration of 4.9. the cannon has a weight of 383n.
what was the velocity of the ball
what is 8.75