Velocity
What is the vertical velocity at the peak of a projectile's trajectory?
Zero
The horizontal component is independent from____________________.
What is the vertical component
The main Force affecting vertical velocity is ___________.
The FORCE OF GRAVITY
If a tennis ball is launched across a tennis court and it takes 4.5 seconds to reach half-court, how long is the full motion of the projectile?
9 seconds!
How much time would it take for a pencil to fall 0.98 meters?
0.45 sec
If a ball is thrown straight up with a velocity of 5.8 m/s, what will its velocity be as it approaches the launch height? What will the velocity be at the top?
-5.8 m/s coming down and 0m/s at the top
What is the Horizontal Component of Motion.
TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.
TRUE
When in the trajectory does projectile have minimum speed?
The top of the peak.
A monkey horizontally 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
What is the initial vertical velocity when an object is launched horizontally?
0m/s
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 (from a basic physics perspective)?
Not at all, her vertical is independent of her horizontal.
What is the horizontal component?
In what direction (Horizontal or vertical) is the velocity at the top of a projectile's peak?
HORIZONTAL
A ball is shot at a bucket from a table (horizontally) 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
At the top of a projectile's trajectory, is there a horizontal velocity?
Yes and vertical velocity is zero
How much will the horizontal velocity of a projectile change in 19.6 seconds?
None at ALL; it remains constant
Changes over time while the projectile is in motion? (at least 2 answers)
What are Displacement, vertical velocity
What is the vertical velocity at the top of any projectile's path?
0 m/s
A football is thrown straight up with a speed of 15 m/s. How long is the ball in the air?
1.5 Sec
Linked by time
What are the x and y components of the motion.
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!
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
45 degrees
If a plane flying at a constant speed drops cargo, how does the cargo fall relative to the plane?
Right under it
Sonic runs off a cliff at 20 m/s, hitting a little rock that causes him to leave at a 20 degree angle. If the cliff is 10m high, how far away does he land?
42.85m meters