JEE Main 2024 Physics question
A bus moving along a straight highway with speed of 72 km/h is brought to halt within 4s after applying the brakes. The distance travelled by the bus during this time (Assume the retardation is uniform) is m.
Answer: 40
Solution
u = 20 m/s, s = (u/2)t = 10 × 4 = 40 m.