# Motion Problem Homework: Calculate Distance, Displacement, Speed, & Velocity

• fleur
In summary, distance refers to the total length of the path traveled by an object, while displacement refers to the straight-line distance between the starting and ending points of an object's motion. Speed is calculated by dividing the distance traveled by an object by the time it took to travel that distance, while velocity takes into account the object's displacement and the time it takes to travel that displacement. Velocity is a vector quantity, meaning it has both magnitude (speed) and direction, and is calculated by dividing an object's displacement by the time it took to travel that displacement. The main difference between speed and velocity is that velocity takes into account the direction of an object's motion, while speed does not. Additionally, speed is a scalar quantity and only has
fleur

## Homework Statement

A ship sails 50km E then 40km N then 20km W. This took 6 hours. Calculate the distance travelled, the displacement, the average speed and the average velocity.
not quite sure on how to attempt this question

fleur said:
not quite sure on how to attempt this question
ship is moving;
draw the four geographical directions and draw the movement vectors with arrow and then add the magnitude to get total distance ...etc.

fleur said:

## Homework Statement

A ship sails 50km E then 40km N then 20km W. This took 6 hours. Calculate the distance travelled, the displacement, the average speed and the average velocity.
not quite sure on how to attempt this question

The question asks for several answers. I'm sure you can work out the first (distance traveled).

fleur said:
Calculate the distance travelled, the displacement, the average speed and the average velocity.
not quite sure on how to attempt this question

Hints:
1. Ship is moving and taking turns- hope you have drawn the vectors - so you know by adding magnitudes the total distance covered.. sayD
2. so now you can calculate average speed you have time spent in covering that total distance D.
3. the total displacement will be vector sum of the displacement- you know how to add vectors -the average velocity which is a vector can be calculated using total displacement and time taken as rate of change of displacement.

fleur said:

## Homework Statement

A ship sails 50km E then 40km N then 20km W. This took 6 hours. Calculate the distance travelled, the displacement, the average speed and the average velocity.
not quite sure on how to attempt this question
@fleur -- Please re-post this question in the Introductory Physics forum, and fill out the full Homework Help Template. It is not acceptable for you to show no work on your schoolwork questions.

## What is the difference between distance and displacement?

Distance refers to the total length of the path traveled by an object, while displacement refers to the straight-line distance between the starting and ending points of an object's motion.

## How do you calculate speed?

Speed is calculated by dividing the distance traveled by an object by the time it took to travel that distance. The formula for speed is: speed = distance / time.

## What is velocity?

Velocity is a measure of an object's speed and direction of motion. It takes into account the object's displacement and the time it takes to travel that displacement. Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.

## How do you calculate velocity?

Velocity is calculated by dividing an object's displacement by the time it took to travel that displacement. The formula for velocity is: velocity = displacement / time.

## What is the difference between speed and velocity?

The main difference between speed and velocity is that velocity takes into account the direction of an object's motion, while speed does not. Also, speed is a scalar quantity and only has magnitude (size), while velocity is a vector quantity and has both magnitude and direction.

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