2D test review

by Tara Dugan

| 15 QuestionsNote 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

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