Question : Spotting a police car, you brake a parsche from a speed of 100kmh −1
to a speed of 80.0 kmh−1 during a displacement of 88.0m, at a constant acceleration. What is the acceleration?
(A) -2.5ms^{-2}
(B) 1.58ms^{-2}
(C) -1.58ms^{-2}
(D) 2.5ms^{-2}
Answer : option (B)
Solution :
