Question

katie measured the distance her friend morgan ran on a straight track every 2s. her measurements are recorded in the table below. what was morgan’s average speed? what was her acceleration for the entire trip?

Answer 1

The average speed of her is 2 m/s.

The acceleration for the entire trip is 0.2 m/s²

Step-by-step explanation:

Given that,

katie measured the distance her friend morgan ran on a straight track every 2s.

According to given chart,

We need to calculate the average speed

Using formula of average speed

`v_(avg)=(D)/(T)`

Where, D = total distance

T = total time

Put the value into the formula

`v_(avg)=(20)/(10)`

`v_(avg)=2\ m/s`

We need to calculate the acceleration for the entire trip

Using equation of motion

`v=u+at`

`2=0+a*10`

`a=(2)/(10)`

`a=0.2\ m/s^2`

Hence, The average speed of her is 2 m/s.

The acceleration for the entire trip is 0.2 m/s²