What is the vertical velocity at the peak of a projectile's trajectory?
What is ZERO!
If a tennis ball takes 4.5 sec to reach its peak, how long does it take to reach the other player?
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 ground?
What is 5.8 m/s
TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.
TRUE
At what part of the projectile have minimum speed?
The top of the peak.
How does a significant amount of air resistance affect a projectile's motion?
it diminishes it
What is the magnitude of velocity called?
What is SPEED
The vertical component is independent the _______________________.
the horizontal component
In what direction is all of the velocity at the top of a projectile's peak?
HORIZONTAL
What is the trajectory of a projectile called?
a parabola!
What factor does vertical velocity depend on?
Gravity
Vertical velocity can be determined by multiplying the acceleration due to gravity by ________________.
the time the projectile was in the air
At the peak of a projectile's trajectory the velocity is both horizontal and vertical, vertical only or horizontal only?
Horizontal ONLY
For an upwardly launched projectile, why does vertical velocity reach zero?
Gravitational Acceleration.
At what other angle will a thrown ball go straight
What is 0 degrees?
EXPLAIN where AND how a package dropped from a plane lands with respect to the moving plane.
The package ends up UNDER the moving plane, since its horizontal velocity remains constant.