Heather and Matthew take 60 sec to walk eastward along a straight road to a store 90 m away. What was their speed?

1.5m/s

Explanation:

Using the formula;

Speed (m/s) = distance (metres) ÷ time (seconds)

According to the information provided in this question, Heather and Matthew spend 60seconds to travel a distance of 90 metres. This means that t = 60s, d = 90m

Hence,

Speed = 90/60

Speed = 3/2

Speed = 1.5m/s.

2%? i tried finding the exact sorry if it's not 100% correct ; -;

energy and particles