Question

A car covers a distance of 22.75 km in 17.04 minutes. Use dimensional analysis to calculate its speed in meters/second. Do not enter units in your answer.

Round to the tenths place or further.

Answer 1

The speed of the car = 22.25 m/s

Further explanation

Given

A distance of 22.75 km

Time = 17.04 minutes

Required

The speed (in m/s)

Solution

Speed is the ratio of distance per time

Can be formulated :

v = d/t

v= speed, m/s

d=distance=m

t=time,s

Input the value :

`\tt v=(22.75~km)/(17.04~minutes)* (1000~m)/(1~km)* (1~minute)/(60~second)\\\\v=\boxed{\bold{22.25~m/s}}`