How Do You Calculate the Average Velocity of a Thunderstorm?

[p5oct]

can anybody answer this physics question?

A meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8:00 PM, the storm was 55 miles northeast of her station. At 11:00 PM, the storm is at 80 miles north.
a) What is the direction of the average velocity of the storm? _______________°north of west
b) What is the magnitude of the average velocity of the storm? ______________ miles/hr

 

[PeterO]

A meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8:00 PM, the storm was 55 miles northeast of her station. At 11:00 PM, the storm is at 80 miles north.
a) What is the direction of the average velocity of the storm? _______________°north of west
b) What is the magnitude of the average velocity of the storm? ______________ miles/hr

Time do draw a diagram again - and a reasonably accurate one - a scale diagram even, using a protractor and ruler.

 

[cepheid]

Welcome to PF p5oct!

Please be sure to follow the rules for homework help threads (you will receive a private message with more information). The template provided is a very useful and systematic approach for solving problems. For instance, it asks you to list the relevant equations: for instance what is the definition of average velocity? So, based on that, and the info that have been given, how would you compute it?