2D test review
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by Tara Dugan
| 15 Questions
Note from the author:
2D motion review
1
1
An airplane is flying East with a velocity of 155km/h. The wind is blowing toward the East at a velocity of 35 km/h. A person on the ground would measure the velocity of the plane to be...
155km/h east
155km/h west
120km/h east
190 km/h east
2
1
The vertical accelertion due to gravity on a projectile is _____.
9.8m/s
9.8m/s^2
-9.8m/s^2
-9.8m/s
3
1
Acceleration is the rate at which an object's velocity changes.
True
False
4
1
The horizontal motion of a horizontally launched projectile affects its vertical motion.
True
False
5
1
A vector is 24m/s, 17 degress NW. The magnitude of the vector is....
24m/s
24
17 degrees
NW
6
1
Projectiles travel with a ____ trajectory due to the influence of _____.
straight, gravity
parabolic, inertia
parabolic, gravity
straight, inertia
7
1
A projectile is any object upon which the only force acting on it it ______.
Gravity on the vertical component
Gravity on the horizontal component
inertia on the vertical component
inertia on the y component
8
1
In projectile problems the Vyf equals _____
Vyo
-Vyo
Vp
9
1
In projectile problems acceleration of the horizontal component is _______
equal to Vxf
-Vxf
0m/s^2
-9.8m/s^2
10
1
On any given projectile, there are no _______ forces and thus no __________ acceleration.
horizontal, horizontal
horizontal, vertical
vertical, vertical
vertical, horizontal
11
1
Velocity at the highest point in a projectile problem will always be 0m/s.
True
False
12
1
An arrow is shot with a velocity of 41m/s at an angle of 30 degrees. What is the initial vertical velocity?
20.5m/s
-20.5m/s
35.51m/s
-35.51m/s
13
1
An arrow is shot with a velocity of 41m/s at an angle of 30 degrees. What is the time when the arrow reaches the peak in it's trajectory?
2.09s
4.37s
3.62s
13.1s
14
1
An arrow is shot with a velocity of 41m/s at an angle of 30 degrees. What is the distance the arrow will reach at its peak trajectory?
10.241m
.04m
21.45m
15
1
Which of the following are vector quantities?
distance
displacement
velocity
acceleration
speed