Question

A body travels 4 km towards north then he turn to his right and travels another 4 km before coming to rest .calculate (1) total distance travelled (2) total displacement

Answer 1

total distance is 4+4 = 8 km
displacement will be 4 × root 2
= 4×1.414= 5.656 km

Answer 2

Concept:

Distance is the actual path traveled by the body whereas Displacement can be defined as the shortest distance between the initial and final point.

Given:

The path traveled by the body.

Find:

Distance traveled and the displacement by the body.

Solution:

The path of the body is depicted using a diagram.

The actual path traveled is the distance traveled.

Total distance travelled  =  4 km + 4 km  = 8 km  

The shortest distance between the initial and final point observed by the image attached,

Total displacement = √(4)²+(4)² = √16+16 = √32 = 4√2 km

Hence, the distance traveled by the body is 8 km and the displacement is 4√2 km.

#SPJ2