X and Y-components of total initial velocity
Hang time
Horizontal Range
Maximum Height
Collision
100
What is the horizontal component of the initial
12.9 m/s
100
It's other name is hang time.
What is the other name for Time of flight.
100
This is calculated by multiplying Horizontal component of initial velocity with time of flight
Horizontal range.
100
At this height Vertical component of the velocity is zero but the horizontal component of the velocity is the same as horizontal component of the initial velocity.
Maximum Height
100
What is the momentum of a 5kg mass moving with +1m/s velocity?
+5 Kg.m/s
200
What is the vertical component of the initial velocity?
7.5 m/s
200
Hang time __________as the launch angle increases.
Increases
200
Horizontal range is longest at this launch angle.
45-degrees
200
Maximum height __________ as the launch angle increases.
Increases.
200
_________________says total momentum of the system before collision is same as the total momentum after collision, assuming there is no other force on the system except force applied on each other.
Law of Conservation of momentum
300
An object is launched vertically into the air at 25 m/s.
What is its velocity at the maximum height?
0 m/s
300
What is the hang time of this projectile?
1.54 seconds
300
Horizontal range__________ from 0-degree to 45-degrees, then ____________ upto 90-degrees.
Increase, decrease.
300
Calculate the time it takes to reach the maximum height.
0.77 seconds
300
During the collision of a fly and a fly swatter, the force applied by the fly on the swatter is the same as the force applied by the swatter on the fly. (TRUE/ FALSE)
TRUE
400
An object is launched vertically into the air at 25 m/s.
What is its velocity at the starting height while coming down?
- 25 m/s
400
A baseball is launched vertically at a velocity of 12.5 m/s. What is its hang time?
2.5 seconds
400
This can be said about horizontal range at 30-degree and 60-degree launch angles.
Horizontal ranges are the same for these launch angles.
400
A baseball is launched vertically at a velocity of 12.5 m/s. What is the maximum height of the baseball?
7.97 m
400
Billiard balls 1 and 3 are of masses 0.2 kg and 0.5 kg, Ball 1 is initially moving at a velocity of +5m/s toward ball 3 which is stationary. After it strikes ball 3, ball 1 returns with a velocity of -1m/s. What is the velocity of ball 3 after the collision?
2.4 m/s
500
This is always greater in magnitude than the horizontal or vertical component of the initial velocity.
Total initial launch velocity
500
A student fires a cannonball horizontally in the air at 32 m/s from the top of a 100m tall tower. What is its hang time?
4.52 seconds
500
What is the horizontal range for this?
20 m
500
A student fires a cannonball horizontally in the air at 32 m/s from the top of a 100m tall tower. What is its Horizontal range?
144.64 m
500
During the collision of two objects, assuming there is no external force except force on each due to the other, momentum lost by one object is __________________.
Gained by the other object.