Q1 of 58 Page 39

A boy moves along the path ABCD. What is the total distance Covered by the boy? What is his net displacement?

Displacement will be shortest vector joining the initial position (A) and final position (D). Let us join A and D by a vector. The length of AD will be the displacement vector.


From the figure, For finding the length of AD, consider triangle ADE, using Pythagoras theorem.


= +


AD comes out to be 50 m.


Hence displacement = 50 m


More from this chapter

All 58 →
1

A motorcycle travelling at 20ms-1 has an acceleration of 4ms-2. What does it explains about the velocity of the motorcycle.

 2

Complete of following sentences

a. The acceleration of the body that moves with a uniform velocity will be ________


b. A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80km/h. Its average velocity during the whole journey in ______________ and its average speed is ____________

 3

Distinguish speed and velocity.

 4

What is meant by negative acceleration?