Question

question 11 of 25
a car drives 20 miles north and then 3 miles south. what is the displacement of the car?
a. 23 miles north
b. 17 miles
c. 23 miles
d. 17 miles north

Explanation:

Step1: Define directions

Let north be the positive - direction and south be the negative - direction.

Step2: Calculate displacement

The car moves 20 miles north (+20) and 3 miles south (-3). The displacement $d$ is $d = 20+( - 3)=20 - 3=17$ miles north.

Answer:

D. 17 miles north