Velocity
What is the vertical velocity at the peak of a projectile's trajectory?
What is ZERO!
The main factor affecting vertical velocity is ___________.
what is gravity
If an observer is moving 5 m/s South on a landing and a boat is moving by at 10 m/s North, what is the boat's motion to the observer?
What is 15 m/s North
If a tennis ball takes 4.5 sec to reach its peak, how long does it take to reach the other player?
What is 9 seconds!
the representation of a vector quantity
What is an arrow
If a ball is thrown straight up with a velocity of 5.8 m/s, what will its velocity be as it approaches the ground?
What is 5.8 m/s
True/False. The horizontal velocity is affected by gravity.
What is FALSE
Which sides of a triangle do you use with the Sin Θ function?
What are the opposite side and the hypotenuse
At what part of the projectile have minimum speed?
What is The top of the peak.
How does a significant amount of air resistance affect a projectile's motion?
What is it diminishes it
What is the magnitude of velocity called?
What is SPEED
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
What is 45 degrees
What do we call a quantity that has magnitude, but no direction?
What is a scalar
In what direction is all of the velocity at the top of a projectile's peak?
what is HORIZONTAL
What is the path of a trajectory of a projectile called?
What is a parabola!
What factor does vertical velocity depend on?
What is Gravity
How much will the horizontal velocity change in 19.6 seconds?
What is None at ALL
What type of triangle must you have in order to use Pythagorean Theorem?
What is a right triangle
an example of a vector quantity
What is speed, displacement, force
True/False: A vector can be moved parallel to itself.
What is True!
At the peak of a projectile's trajectory the velocity is both horizontal and vertical, vertical only or horizontal only?
What is Horizontal ONLY
If you were to throw a rock 4.3 m/s, horizontally, and drop another from the same height, which would hit the ground first?
What is Neither, they would hit the ground at the same time!
A piece of chalk is dropped by a teacher walking at a speed of 1.5 m/s. From the teacher's perspective, the chalk appears to fall ____________
What is straight down
Which of the following is an example of projectile motion: a jet lifting off a runway, a baseball being thrown, dropping a can into a waste bin, or a space shuttle in orbit around the Earth.
what is the baseball being thrown
The orientation of two vectors in order to correctly add them
What is tip - to -tail