Question

a person starts from home and goes 50 km to the office and again come back to home find his distance travelled and displacement​

Answer 1

he traveled in a straight line means it's a rectilinear motion . thus , in rectilinear

distance = displacement.

distance = 50 km ( going to office ) + 50 km ( returning) = 100km

displacement = 100 km.( as in rectilinear motion distance= displacement).