2b) What is happening to the vertical acceleration on the way up and down?

It is constant at about 10 m/s/s down

The vertical component of a projectile's velocity on Earth is

always changes by about 10m/s each second

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2D Motion & Projectiles Review

18 termsStudBud Administration23 plays

2D Motion & Projectiles Review for College Prep

Flashcards18 cardsFPractice quizPHost liveL

Questions 18

Answers

1
Minimum velocity occurs at
Just before highest point
Just after it's thrown
Just before it lands
At highest point
2
Which bullet hits the ground first?
Bullet B
They land at the same time
Bullet A
Impossible to tell
3
2b) What is happening to the vertical acceleration on the way up and down?
It decreases, then increases.
It is constant at 0 m/s/s
It is constant at about 10 m/s/s down
It increases, then decreases
4
1b) What is happening to the horizontal acceleration?
It decreases then increases.
It constantly increases.
It is constant at 0 m/s/s.
It is constant at 10 m/s/s down.
5
1a) What forces are present in the horizontal direction (after it leaves their hand)?
Gravity and the force of the throw
Gravity
Just the force of the throw
No horizontal forces present.
6
1c) What is happening to the horizontal velocity on the way up and down?
It increases on the way up, and decreases on the way down.
It changes by 10 m/s each second
It decreases on the way up, and increases on the way down.
It is constant
7
Which hits the ground first?
Impossible to tell
They land at the same time
Bullet B
Bullet A
8
What is happening to the vertical velocity on the way up and down?
It increases then decreases.
It is constant.
It is always zero.
It decreases, then increases.
9
What given information affects the time it will take to hit the ground?
neither
both
265 m/s
61 m high
10
The velocity is
Depends of the acceleration
entirely vertical
Both horizontal and vertical
entirely horizontal
11
Alan's new time is
14.1 s
5 s
20 s
10 s
12
The vertical velocity graph is
Upper left
Lower left
Lower right
Upper right
13
The vertical component of a projectile's velocity on Earth is
is always -9.8 m/s/s
always 0 m/s/s
is constant
always changes by about 10m/s each second
14
The horizontal velocity graph is
Lower left
Upper right
Upper left
Lower right
15
Which hits the ground first?
Bullet A
They land at the same time
Bullet B
Impossible to tell
16
When the river's velocity is doubled, which changes?
the distance downstream
Both time to cross and distance downstream will change.
Time to cross the river
17
2a) What vertical forces are present (after leaving their hand)?
Gravity and the force of the throw.
No vertical forces are present.
Just gravity
Just the force of the throw
18
Laury's time is
7.1 s
5 s
Depends on river's speed
10 s

2D Motion & Projectiles Review Flashcards | StudBud

2D Motion & Projectiles Review

18 termsStudBud Administration23 plays

2D Motion & Projectiles Review for College Prep

Flashcards18 cardsFPractice quizPHost liveL

Questions 18

Answers

1
Minimum velocity occurs at
Just before highest point
Just after it's thrown
Just before it lands
At highest point
2
Which bullet hits the ground first?
Bullet B
They land at the same time
Bullet A
Impossible to tell
3
2b) What is happening to the vertical acceleration on the way up and down?
It decreases, then increases.
It is constant at 0 m/s/s
It is constant at about 10 m/s/s down
It increases, then decreases
4
1b) What is happening to the horizontal acceleration?
It decreases then increases.
It constantly increases.
It is constant at 0 m/s/s.
It is constant at 10 m/s/s down.
5
1a) What forces are present in the horizontal direction (after it leaves their hand)?
Gravity and the force of the throw
Gravity
Just the force of the throw
No horizontal forces present.
6
1c) What is happening to the horizontal velocity on the way up and down?
It increases on the way up, and decreases on the way down.
It changes by 10 m/s each second
It decreases on the way up, and increases on the way down.
It is constant
7
Which hits the ground first?
Impossible to tell
They land at the same time
Bullet B
Bullet A
8
What is happening to the vertical velocity on the way up and down?
It increases then decreases.
It is constant.
It is always zero.
It decreases, then increases.
9
What given information affects the time it will take to hit the ground?
neither
both
265 m/s
61 m high
10
The velocity is
Depends of the acceleration
entirely vertical
Both horizontal and vertical
entirely horizontal
11
Alan's new time is
14.1 s
5 s
20 s
10 s
12
The vertical velocity graph is
Upper left
Lower left
Lower right
Upper right
13
The vertical component of a projectile's velocity on Earth is
is always -9.8 m/s/s
always 0 m/s/s
is constant
always changes by about 10m/s each second
14
The horizontal velocity graph is
Lower left
Upper right
Upper left
Lower right
15
Which hits the ground first?
Bullet A
They land at the same time
Bullet B
Impossible to tell
16
When the river's velocity is doubled, which changes?
the distance downstream
Both time to cross and distance downstream will change.
Time to cross the river
17
2a) What vertical forces are present (after leaving their hand)?
Gravity and the force of the throw.
No vertical forces are present.
Just gravity
Just the force of the throw
18
Laury's time is
7.1 s
5 s
Depends on river's speed
10 s