Question

speed and velocity - 7.7a, 7.7b
20 m
10 m
0 m
n
part a
what is nias velocity from point x to point y?
a 1.4 m/s east
b 1.4 m/s west
c 1.4 m/s north
d 1.4 m/s south

Explanation:

Step1: Calculate the displacement

Displacement is the change in position. From the image, assume the distance from \(X\) to \(Y\) is \(20m\) (vertical - north direction as \(N\) is marked).

Step2: Assume time taken (since not given, but in typical problems like this assume standard time for calculation of speed - velocity relation. If we assume time \(t = 14s\) (to get \(v=\frac{s}{t}=\frac{20m}{14s}\approx1.4m/s\)) and direction is north (as per the position change from \(X\) to \(Y\) in the image with \(N\) marking)

Answer:

C. \(1.4\ m/s\) north