A sports car is advertised to be able to stop in a distance of 60 m from a speed of 105 km/h.

Question

(a) What is its acceleration in m/s2?
Incorrect: Your answer is incorrect. m/s2
(b) How many g's is this (g = 9.80 m/s2)?
Correct: Your answer is correct.

Answer 1

Convert the velocity V to m/s.,
V = sqrt(2aX)
X = 60 m,
Solve for a.
a = V^2/(2X)

Divide a in m/s^2 by 9.8 to convert to g's