Question

What is the relative velocity of buses P and Q if they are moving in opposite directions with velocities of 15 m/s and 12 m/s, respectively, from the same place at the same time?

a) 3 m/s
b) 27 m/s
c) 18 m/s
d) 10 m/s

Answer 1

The relative velocity of buses P and Q is 27 m/s.

Step-by-step explanation:

The relative velocity of buses P and Q can be calculated by finding the difference between their velocities.

The velocity of bus P is 15 m/s in one direction, and the velocity of bus Q is 12 m/s in the opposite direction. Therefore, the relative velocity is:

Relative velocity = Velocity of bus P - Velocity of bus Q

= 15 m/s - (-12 m/s)

= 15 m/s + 12 m/s

= 27 m/s

So, the relative velocity of buses P and Q is 27 m/s.