Question

A car travels stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50km/h.find
displacement of the car.
distance travelled by the car.
average speed of the car.​

Answer 1

Answer:

Displacement is 0 and average speed is 35km/h

Explanation:  

As object travels from A to b and then again from B to A, the object returns to its  starting point therefore there is 0 displacement .

avg speed = total distance / total time

let us take distance from A to B  , D

THEREFORE,

t1= D/30

t2= D/50

so, D+D/(D/30+D/50) = 35km/h

I can't give you the distance until you tell me the time (numeral value)