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Elijah’s home is 1.1km from the library
His journey from his home to the library, including a 2 minute stop on the way, is shown on the
graph below.
How much faster was Elijah travelling before his stop than afterwards?

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Elijah was travelling before his stop than afterwards with speed of 0.5 km/h.

What is formula to calculate speed or velocity?

To solve for distance use the formula for distance d = vt, or distance equals speed times time. Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour.

Before his stop, the velocity =$$\frac{0.4km}{0.1 h}$$

= 4 km/h

After his stop, the velocity =$$\frac{2.7km}{2.2 h}$$

= 3.5 km/h

So, 4-3.5 km/h= 0.5 km/h

Elijah was travelling before his stop than afterwards with speed of 0.5 km/h