Two-Dimensional Motion and Vectors

A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his displacement?

• 35.4 meters NW
• 22.4 meters SE
• 119 meters
• 22.4 meters NW

A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his total distance?

• 40 meters
• 22.4 meters
• 30 meters
• 120 meters

A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was the average velocity that he traveled?

• 0.44 m/s NW
• 1.5 m/s SW
• 1/5 m/s NW
• 0.28 m/s NW

The result of adding two vectors together is called the?

• independent vector
• resultant vector
• directional vector
• manipulated vector

At the instant a ball is thrown horizontally, an identical ball is dropped from the same height. Which ball hits the ground first? (no air resistance)

• the horizontally thrown ball
• they both hit the ground at the same time
• the dropped ball

The diagram represents the path of a car that is driven off a cliff. Neglecting air resistance, the horizontal component of the velocity at A is _______ the horizontal component of the velocity at B

• smaller than
• greater than
• the same as
• can not be determined

Tags

NGSS.HS-PS2-2

According to the picture, which points is the speed of the projectile the same?

• B and E
• A and E
• B and D
• Both A and E, B and D

In the absence of air resistance, the angle at which a thrown ball will go the farthest is?

• 60 degrees
• 45 degrees
• 15 degrees
• 30 degrees

The cannon fires at 45 degrees with a set velocity. If the angle of the projectile is raised to 75 degrees, what would happen to the height and range of the projectile's path?

• The projectile would travel to a greater height and have a longer range.
• The projectile would travel to a lower height and have a smaller range.
• The projectile would travel to a greater height and have a smaller range.
• The projectile would travel to a greater height and have the same range.

A ball is thrown straight upward at 20 m/s. With no air resistance, the ball will return to the thrower's hand with a speed of?

• 20 m/s
• 40 m/s
• 80 m/s
• 0 m/s