Equation
How do you determine the time spent in free fall mathematically?
√[(2* displacement Y)/ acceleration]
In what direction/s do we consider a Projectile Motion?
Horizontal and Vertical
What is the standard unit for acceleration?
Uniformly Accelerated Motion
What influences to an object to move freely falling?
Gravity
What is an example of a vector?
Displacement,velocity, acceleration
When velocity changes by the same amount during each time interval what does that say about acceleration?
Acceleration is Constant
What happens to the horizontal velocity component in a Projectile Motion?
What is the term used to define the change in position in some time interval?
Displacement
Without air resistance, free-falling objects fall at a rate of how many meters per second?
9.81 m/s2 down
A vector contains what two things?
Magnitude and Direction
how would you calculate the final velocity if given the initial velocity, acceleration and change in time?
vf=vi+at
What type of graph is used to determine the projectile of an object?
Parabola
The moment an object reaches the peak of its trajectory, what is its velocity?
Velocity: 0m/s
An object is dropped and touches the ground after 8 seconds. Assuming air resistance is negligible and the object is in free fall, how high up was the object dropped from. Round to the hundredth
.5(-9.81)*82 = -313.92.
Dropped from 313.92 meters up
What is the type of quantity that is only specified by a single value with an appropriate unit and has no direction?
Scalar quantity
How do you determine the distance fallen after free fall?
x = 1/2at2
In this class what is the state of horizontal velocity when doing problems?
Horizontal velocity should be constant.
What happens to the object when the velocity of a particle changes with time?
The object is accelerating
What is the value of acceleration in a free fall?
9.81 m/s2
A vector points from the origin to the second (2nd) quadrant of the xy plane. What can you conclude about its components?
If you are given the initial velocity, final velocity, and change in time what equation would you use to find the displacement (x)?
Δx=1/2(vi+vf)t
What is not present and has no value in a horizontally launched projectile?
Initial vertical velocity
Gravity does not work in what direction?
Horizontal
In the concept of free-falling bodies when the effects of air resistance are negligible, what will happen to the motion of two objects dropped on the floor?
One of them will fall faster than the second one
What is the symbol used to indicate a vector?
Variable with an arrowhead on top