Back to Course

SS1: PHYSICS – 1ST TERM

0% Complete
0/0 Steps
  1. Introduction to Physics | Week 1
    4Topics
    |
    1 Quiz
  2. Measurement | Week 2
    3Topics
  3. Measurement of Mass | Week 3
    6Topics
    |
    1 Quiz
  4. Motion | Week 4
    5Topics
    |
    1 Quiz
  5. Velocity-Time Graph | Week 5
    4Topics
    |
    1 Quiz
  6. Causes of Motion | Week 6
    5Topics
    |
    1 Quiz
  7. Work, Energy & Power | Week 7
    3Topics
  8. Energy Transformation / Power | Week 8
    3Topics
    |
    1 Quiz
  9. Heat Energy | Week 9
    5Topics
    |
    1 Quiz
  10. Linear Expansion | Week 10
    6Topics
    |
    1 Quiz
Lesson 4, Topic 4
In Progress

What is the difference between Distance & Displacement?

Lesson Progress
0% Complete
PHY100 Easy Resize.com

The path length of the car between the initial (Ikoyi) and final position (Lekki) gives the distance covered by the car.

Distance is defined as the total length of the path traveled from one location to another.

Distance traveled by the car = 200m + 500m + 600m + 250m = 1550m

The minimum distance between the initial and final positions of a body during the time interval is called displacement.

PHY101 Easy Resize.com

Displacement is the distance traveled or covered by an object in a specific direction.

It is the distance travelled by an object from its initial position to its final position in a straight line

For the car travelling from Ikoyi to Lekki, the displacement is determined by measuring the length of the straight line connecting Lagos to Lekki in the direction of Lekki from Ikoyi.

Using Pythagoras Theorem,

= \( \scriptsize d^2 = a^2 + b^2\)

= \( \scriptsize Displacement^2 = 800^2 + 750^2 \)

Displacement = \( \scriptsize \sqrt{800^2 + 750^2} \)

= \( \scriptsize \sqrt{1202500} \)

= \( \scriptsize 1096.6m\)

Its direction is given by \( \scriptsize tan \theta = \normalsize \frac{opp}{adj} \)

:- \( \scriptsize tan \theta \\ = \frac{750}{800} \\ = \frac{10}{12} \)

tan θ = 0.9375

θ = tan-1(0.9375) = 45°

Its direction is South – West of Ikoyi (or South West 45º West of Ikoyi)

Distance and Displacement are both measured in meters

back-to-top
error: