| vector and scalar quantities | components of vectors | projectile motion | upwardly launched projectiles | projectile basics |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
A vector is a quantity that has
A vector is a quantity that has
magnitude and direction
A scalar is a quanity that has
A scalar is a quanity that has
magnitude
Velocity is classified as a
Velocity is classified as a
vector quanity
If a vector that is 1 cm long represents a velocity of 10 km/h, what is the velocity of 2 cm long drawn to the same scale represent
If a vector that is 1 cm long represents a velocity of 10 km/h, what is the velocity of 2 cm long drawn to the same scale represent
20 km/h
Calculate the magnitude of the horizontal and vertical components of a vector that is 100 units long and is at 45 degrees
Calculate the magnitude of the horizontal and vertical components of a vector that is 100 units long and is at 45 degrees
141 km/h at 45 degrees to either vector
The horizontal component of a projectile's velocity is independent of
The horizontal component of a projectile's velocity is independent of
the vertical component of its velocity
A ball thrown into the air at some angle. At the very top of the ball's path, it velocity is
A ball thrown into the air at some angle. At the very top of the ball's path, it velocity is
entirely horizontal
What is the ideal angle for both the maximum distance and height.
What is the ideal angle for both the maximum distance and height.
45 degrees
In the absence of air resistance, the angle at which a thrown ball will go the farthest is
In the absence of air resistance, the angle at which a thrown ball will go the farthest is
45 degrees
At what part of a path does a projectile have minimum speed
At what part of a path does a projectile have minimum speed
at the top of its path
A connonball is launched from the ground at an angle of 30 degrees above the horizontal and a speed of 20 m/s. Ideally (no air resistance) the ball will land on the ground with a speed of
A connonball is launched from the ground at an angle of 30 degrees above the horizontal and a speed of 20 m/s. Ideally (no air resistance) the ball will land on the ground with a speed of
20 m/s
A projectile launched horizontally hits the ground in 0.5 seconds. If it had been launched with a much higher speed in the same direction, it would have hit the ground (neglecting the earth's curvature and air resistance) in
A projectile launched horizontally hits the ground in 0.5 seconds. If it had been launched with a much higher speed in the same direction, it would have hit the ground (neglecting the earth's curvature and air resistance) in
0.5 seconds
An object is fired horizontally in a vacuum. The projectile maintains its horizontal component of speed because it
An object is fired horizontally in a vacuum. The projectile maintains its horizontal component of speed because it
is not acted on by any horizontal forces
An object is dropped and falls freely to the ground with an acceleration of 1 g. If it is thrown upward at an angle instead, its acceleration would be
An object is dropped and falls freely to the ground with an acceleration of 1 g. If it is thrown upward at an angle instead, its acceleration would be
1 g downward
A ball is hurled into the air at an angle of 30 degrees above the horizontal and lands on a target that is at the same level as that where the ball started. The ball will also land on target if it is thrown at an angle of
A ball is hurled into the air at an angle of 30 degrees above the horizontal and lands on a target that is at the same level as that where the ball started. The ball will also land on target if it is thrown at an angle of
60 degrees
What is the resulant of a 4 unit vector and 3 unit vector at right angles to each other
What is the resulant of a 4 unit vector and 3 unit vector at right angles to each other
5 units
When in orbit, a satellite like the space shuttle is
When in orbit, a satellite like the space shuttle is
simply a projectile
After a rock that is thrown straight up reaches the top of its path and is starting to fall back down, its acceleration is (neglecting air resistance)
After a rock that is thrown straight up reaches the top of its path and is starting to fall back down, its acceleration is (neglecting air resistance)
the same as when it was at the top of its path
The approximate resultant of a pair of 10 unit vectors at right angles to each other is
The approximate resultant of a pair of 10 unit vectors at right angles to each other is
14 N
A cannon with a barrel velocity of 100 m/s launches a cannonball horizontally from a tower. Neglecting air resistance, where will the cannonball be 1 second later
A cannon with a barrel velocity of 100 m/s launches a cannonball horizontally from a tower. Neglecting air resistance, where will the cannonball be 1 second later
100 m downrange
T or F: A vector sum is called the resultant
T or F: A vector sum is called the resultant
True
T or F: The length of a vector reprents its magnitude.
T or F: The length of a vector reprents its magnitude.
True
At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first
At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first
Neither, they both hit the ground at the same time
A boat is rowed at 8 km/h directly across a river that flows at 6 km/h. What is the resultant speed of the boat
A boat is rowed at 8 km/h directly across a river that flows at 6 km/h. What is the resultant speed of the boat
10 km/h
A boy on a 20 m tower throws a ball a distance of 60 m. At what speed, in m/s, is the ball thrown
A boy on a 20 m tower throws a ball a distance of 60 m. At what speed, in m/s, is the ball thrown
30 m/s
A body projected upward from the level ground at an angle of 50° with the horizontal has an initial speed of 40 m/s. (a) How long will it take to hit the ground? (b) How far from the starting point will it strike? (c) At what angle with the horizontal will it strike?
A body projected upward from the level ground at an angle of 50° with the horizontal has an initial speed of 40 m/s. (a) How long will it take to hit the ground? (b) How far from the starting point will it strike? (c) At what angle with the horizontal will it strike?
. (a) 6.3 s (b) 160 m (c) 50°
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