Vector mechanics for engineers Beer 10th dynamics 11-140P

Question

A motorist starts from rest at Point A on a circular entrance ramp when

t = 0, increases the speed of her automobile at a constant rate and

enters the highway at Point B. Knowing that her speed continues to

increase at the same rate until it reaches 100 km/h at Point C,

determine (a) the speed at Point B, (b) the magnitude of the total

acceleration when t = 20 s.

Answer 1

a) Therefore, the speed at B is 23.27 m/s

b) Therefore, the total acceretation is 3.706 m/s^2