Question

1. If a speedometer's absolute error is 1 mph and it measures a speed of 55 mph, what is the relative error of this measurement expressed as a percentage?

Answer 1

Step-by-step explanation:

Absolute error and relative error are two types of experimental error. You'll need to calculate both types of error in science, so it's good to understand the difference between them and how to calculate them.

hope it helps you buddy ✌️✌️

Answer 2

Concept introduction:

Relative errror is measured as a ratio between absolute error and actual value.

Given:

Here it is given that speedometer's absolute error is $1mph$.

and  it measures a speed of $55mph$.

To find:

we hav to find the relative error of this measurement expressed as a percentage.

Solution:

Relative error$=\frac{absolute value}{total value}$

So, the relative error of this measurement expressed as a percentage is

$\frac{1}{55}*100$‰

≅$1.82$‰

So, the final answer is $1.82$‰.