Question

Ken Warby set the world speed record on water on October 8, 1978. He drove his boat 1500.0 meters (distance) in 8.1018 seconds

(time). What was his average speed in m/s?

Answer 1

185.1 m/s

Step-by-step explanation:

The average speed of an object is a scalar quantity telling us how fast is the object moving over a certain distance.

This quantity is calculated as

`v=(d)/(t)`

where

d is the distance covered by the object

t is the time elapsed

v is the average speed

In this problem we have:

d = 1500.0 m is the distance covered by Ken

t = 8.1018 s is the time taken

Substituting into the formula, we find the average speed:

`v=(1500.0)/(8.1018)=185.1 m/s`