Two Dimensional Motion

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

Which is an example of a vector quantity?

• distance
• velocity
• time
• speed

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. How long will it take for the boat to cross the river?

• 250 seconds
• 145 seconds
• 1.4 seconds
• 179 seconds

A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. What is the resultant velocity of the sailboat?

• 2.0 m/s Southwest
• 8.6 m/s Southwest
• 8.6 m/s Northwest
• 12 m/s Southwest

A motorboat with a speed of 5.0 meters per second in still water is headed East. The motorboat then comes to a river heading South with a speed of 3.3 meters per second. What is the boat's resulting velocity when the boat enters the flow of the river?

• 3.3 m/s S
• 5.0 m/s E
• 6.0 m/s SE
• 8.3 m/s SE

A motorboat traveling 5 m/s East across a river encounters a current moving 3.5 m/s South. If it takes the boat 25 seconds to cross the river, how far downstream is the boat pushed by the current?

• 125 m
• 62.5 m
• 139.8 m
• 312.5 m

A plane at a height of 400 m drops a skydiver and he lands 500 m from the drop point. How fast is the plane flying?

• 143 m/s
• 45 m/s
• 6.25 m/s
• 56 m/s

Tags

NGSS.HS-PS2-1