To deliver food to a customer, Jungkook, the FoodPanda rider, drives 4.00 km north, then 6.00 km east, then 8.00 km in a direction 60.0° north of east. What is Jungkook’s net displacement? A.14.8 km, 42.5° north of east B.14.8 km, 47.5° north of east C.15.2 km, 31.7° north of east D.15.2 km, 58.3° north of east

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 71P: A commuter airplane starts from an airport and takes the route shown in Figure P1.71. The plane...
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1.) To deliver food to a customer, Jungkook, the FoodPanda rider, drives 4.00 km north, then 6.00 km east, then 8.00 km in a direction 60.0° north of east. What is Jungkook’s net displacement?

A.14.8 km, 42.5° north of east
B.14.8 km, 47.5° north of east
C.15.2 km, 31.7° north of east
D.15.2 km, 58.3° north of east
 
2.) A cyclist is moving along a highway at 12 km/h and is heading north. He feels a wind blowing from the west to east at 5 km/h. What is the velocity of the cyclist relative to a stationary observer on the highway?
A.12 km/h, north
B.13 km/h, 67° north of east
C.13 km/h, 67° north of west
D.13 km/h, 23° north of west
 
3.) A 20.0-cm tall toy car is placed 60.0 cm in front of a converging mirror whose focal length is 30.0 cm. Which is the CORRECT description of the image formed?
A.The image is upright, real, and 40. cm tall.
B.The image is inverted, real, and 20.0 cm tall.
C.The image is inverted, virtual, and 40. cm tall.
D.The image is upright, virtual, and 20.0 cm tall.
 
4.) A man on a skateboard (mtotal=63 kg) is moving at 7.22 m/s when a 159 N force is applied opposite the direction of the skateboarder’s motion, causing it to slow down to 2.27 m/s. What is the skateboarder’s change in momentum?
A. -598 kg·m/s
B. -312 kg·m/s

C. -0.0786 kg·m/s

D. 0.151 kg·m/s
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