Question

if an object starts at rest and moves 90 meters south along a straight line for 3 seconds, what is its average velocity?

Answer 1

Velocity = 30 m/s north

Answer 2

We use the simply the formula,

`v = (d)/(t)`

Here, v is velocity, d is distance traveled by the object and t is time taken to travel.

Given, d = 90 m and t = 3 s.

Therefore,

`v = (90 \ m)/( 3\ s ) = 30 \ m/s`.