Doubt from circular motion

moderate
find-acceleration
curvature
circular-motion
unsolved
pp
#1

The car passes point A with a speed of 25 m/s after which its speed is defined by v=(25-0.15s) m/s. Determine the magnitude of the car's acceleration when it reaches point B, where s=51.5m.

The correct answer is 2.75m/s^2.

I will be thankful for help!

#2

For tangential acceleration, use a= v dv/dx

Find velocity at the point required. Centripetal acceleration = v^2/r.

Calculate the net acceleration from the above two by calculating their vector sum

#3

How to get r @Manan_2020?

#4

Sorry bro. Was in a hurry didn't see it was not a circle :sweat_smile: