Measurement of length

Question 1

Distance

Answer 1

Actual size path covered by body in motion, path dependent

Scaler quantity (d)

Question 2

Displacement

Answer 2

Shortest path covered by body, distance b/w initial & final position (always straight line), path independent

Vector quantity (s)

Question 3

distance travelled=displacement

Answer 3

When body travels in straight line (rectilinear motion)
d=s

Question 4

Displacement=0

Answer 4

when initial & finial position are the same

Question 5

when distance > displacement

Answer 5

When body doesn’t travel in rectilinear motion