A car travels along the level curved road with a speed which is decreasing at the constant rate of a=0.7m/s2. The speed of the car as it passes point A is v=20.2m/s. Calculate the magnitude of the total acceleration of the car as it passes point B (in m/s2) which is 120m along the road from A. The radius of curvature of the road at B is 66m.

Question

anonymous · Answer

centripetal acceleration is going to remain same Ac v^2/r
tangentiall acc At=0.7m/s^2

total acc magnitude=root of Ac^2+At^2

anonymous · Answer

thank you salini..could you give me the answer so i can confirm that i got the answer correct?

anonymous · Answer

something around 6.22 m/s^2