Question

A football is thrown due north across a 40 meter river and it takes 2 seconds to cover that distance.

10. What is the speed of the football in meters per second?

11. What is the velocity of the football in meters per second?

HELP DUE TODAY!!

Answer 1

I. Speed = 20m/s

II. Velocity = 20m/s due North.

Step-by-step explanation:

Given the following data;

Distance = 40m

Time = 2secs

To find the speed;

Mathematically, speed is given by the formula;

`Speed = (distance)/(time)`

Substituting into the equation, we have;

`Speed = (40)/(2)`

Speed = 20m/s.

In physics, we use the same formula for calculating speed and velocity. The only difference is that speed is a scalar quantity and as such has magnitude but no direction while velocity is a vector quantity and as such it has both magnitude and direction.

`Velocity = (distance)/(time)`

Therefore, the velocity is 20m/s due North.