Question

A rectangular track is 40m long and30m broad.A man starts walking from corner of the track and reaches the opposite corner. find the distance travelled and the magnitudeof displacement.

Answer 1

Let's see the given data:

Rect. Track Length = 40 m
Rect. Track Breadth = 30 m

Then,  Distance = Length + Breadth
                          = 40+30 = 70 m  ← Ans

We use Pythagoras theorem:

(Displacement)² = (40)² + (30)²
(Displacement)² = 1600 + 900
(Displacement)² = 2500
Displacement = √2500
Displacement = 50 meter  ← Ans