Physics Quiz

Emily passes a soccer ball 6.0 m directly across the field to Kara. Kara then kicks the ball 14.5 m directly down the field to Luisa. What is the ball's total displcement as it travels between Emily and Luisa?

-13 m at 67 degrees south of east

What are the horizontal and vertical components of a cat's displacement when the cat has climbed 5m directly up a tree?

0m, 5m

A hummingbird, 3.4 m above the ground, flies 1.2 m along a straight path. Upon spotting a flower below, the hummingbird drops directly downward 1.4 m to hover in front of the flower. What is the humming bird's total displacement?

2.3 m at 59 degrees west of south

A truck driver is attempting to deliver some furniture. First, he travels 8 km east, and then he turns around and travels 3 km west. Finally, he turns again and travels 12 km east to his destination. a.) What distance has the driver traveled? b.) What is the driver's total displacement?

23 km; 17 km

What is the magnitude of the vertical component of the velocity of the plane in item 1? (How fast must a truck travel to stay beneath an airplane that is moving 105 km/h at an angle of 25 degrees to the ground? (Which you solved to get 95 km/h))

44 km/h

While following the directions on a treasure map, a pirate walks 45.0 m north and then turns and walks 7.5 m east. What single-straight line displacement could the pirate have taken to reach the treasure?

46 m west of north

How fast must a truck travel to stay beneath an airplane that is moving 105 km/h at an angle of 25 degrees to the ground?

95 km/h

A truck drives up a hill with a 15 degree incline. If the truck has a constant speed of 22 m/s, what are the horizontal and vertical components of the truck's velocity?

vx=5.7 m/s vy=21 m/s