What is the vertical velocity at the peak of a projectile's trajectory?
Zero
100
The horizontal component is independent from____________________.
What is the vertical component
100
The main factor affecting vertical velocity is ___________.
GRAVITY
100
If a tennis ball takes 4.5 sec to reach its peak, how long is the full motion of the projectile?
9 seconds!
100
How much time would it take for a pencil to fall 0.98 meters?
0.45 sec
200
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
200
True/False. The horizontal velocity is affected by gravity.
FALSE
200
TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.
TRUE
200
At what part of the projectile have minimum speed?
The top of the peak.
200
A monkey throws a banana off 15 m tall tree. The banana fell 8 m away from the tree. What was the horizontal velocity of the banana?
4.6 m/s
300
What is the magnitude of velocity called?
What is SPEED
300
If Jane can jump her unicycle 0.34 meters off her driveway from rest, how would riding down the driveway(moving) and jumping affect her height?
Not at all, her vertical is independent of her horizontal.
300
The vertical component is independent the _______________________.
the horizontal component
300
In what direction is all of the velocity at the top of a projectile's peak?
HORIZONTAL
300
A ball is shot at a bucket from a table with a height of 25 m. The initial velocity is 4.5 m/s. What is the horizontal distance of the ball?
What is 7.2 m
400
Is velocity a scalar or a vector?
Vector
400
How much will the horizontal velocity of a projectile change in 19.6 seconds?
None at ALL
400
Does the vertical component change over time while a projectile is in motion?
Yes
400
At what other angle will a thrown ball go the same distance as one thrown 20 degrees?
70 degrees
400
A football is thrown at 60 degrees with a speed of 15 m/s. How long is the ball in the air?
6.12 seconds
500
At the peak of a projectile's trajectory, is there a horizontal velocity?
Yes
500
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?
Neither, they would hit the ground at the same time!
500
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
45 degrees
500
If a plane flying at a constant speed drops cargo, how does the cargo fall relative to the plane?
Right under it
500
A basketball player shoots a basketball from 2.5 m high with a speed of 10 m/s. The player shoots the ball at an angle of 40 degrees. If the basket is 3.5 m high, how far away was the player when they drain the shot?