Question

Q 17/90 A car travelling with speed 10 km/h can
stop within a distance of 20 m. If the car is moving
with speed 20 km/h, then stopping distance will be
[Assume constant retardation]
20 m
40 m
60 m
80 m​

Answer 1

the car will move with speed 80m

Explanation:

find acceleration with initial speed and distance.and then find distance with known accleration.

Answer 2

Answer:

Option D is correct

hope my answer helps you...........