Question

Force and Motion 4 of 40

Answer 1

Answer:

$V =2m/s$

Explanation:

Given:

Represent

- Susan's velocity with $V_s$

- Michael's velocity with $V_m$

$V_m = 7m/s$ eastwards

$V_s = 5m/s$ westwards

Required

Determine how fast is $V_s$ relative to $V_m$

From the question, one train moves eastwards while the other moves westwards.

This means that travel in opposite travel and the relative speed (V) is calculated as:

$V = V_m - V_s$

Substitute values for $V_s$ and $V_m$

$V =7m/s - 5m/s$

$V =2m/s$

Hence, the Susan's train is moving 2m/s in relative to Michael's train