Question

question 15 (4 points)
(01 10 mc)
jibril walks 40.0 meters east in 120.0 seconds. he then walks 30.0 meters west in 60.0 seconds. what is his average velocity for the trip?
a 0.0556 m/s east
b 0.389 m/s east
c 0.0833 m/s west
d 0.167 m/s west

Explanation:

Step1: Calculate net displacement

Net displacement = 40.0 m (east) - 30.0 m (west) = 10.0 m (east)

Step2: Calculate total time

Total time = 120.0 s+60.0 s = 180.0 s

Step3: Calculate average velocity

Average velocity = $\frac{\text{Net displacement}}{\text{Total time}}=\frac{10.0\ m}{180.0\ s}\approx0.0556\ m/s$ (east)

Answer:

A. 0.0556 m/s east