What is the initial velocity in the y - direction for an object thrown horizontally from a cliff at 3m/s
What is 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 highest point, how long does it take to reach the other player?
9 seconds!
100
What is the name of Mr. Lockwood's Dog?
Clara
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.
What is TRUE
200
Which case of projectile motion deals with an object being thrown at an angle from the top of a cliff
What is Case #3
200
Case 1 is easiest to distinguish because it is missing what key variable?
What is an angle
300
How do we find the x-component of velocity
What is Acos(theta)
300
If your vertical jump is 1m, will you be able to jump higher than that with a running start?
Not at all, your vertical is not influenced by your horizontal speed
300
Where would a model rocket land if launched at an angle 79 degrees above horizontal with a velocity of 56m/s
What is 119.94m
300
How far from the base of a cliff does a rock land when thrown horizontally at 20 m/s from 30m high
49.49m
300
What is the path of a projectile called?
What is a trajectory
400
What are the x and y components of a velocity of 25m/s 32 degrees above horizontal?
what is x = 21.2 and y = 13.2
400
How much will the horizontal velocity change in 19.6 seconds?
None at ALL
400
For the second case of projectile motion what is the starting position of the projectile?
(0,0)
400
At what other angle will a thrown ball go the same distance as one thrown 20 degrees?
70 degrees
400
What do we call the horizontal distance that a projectile travels?
What is the range
500
This component is found using Asin(theta)
What is the Y velocity
500
If you were to throw a rock 4.3 m/s, horizontally, and drop another from the same height of 1m, which would hit the ground first? And how long would it take each one to hit the ground?
What is 0.45s, they both hit at the same time
500
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
45 degrees
500
A soccer is kicked at a goal with a velocity of 18 m/s at an angle 25 degrees above ground level. What is the furthest away the goal could be in order for him to make it?