On-ramps are designed so that motorists can move seamlessly into highway traffic. If a car needs to increase its speed from 7,1 m/s to 11,4 m/s and the engine can provide a 2 maximum acceleration of magnitude 3,4 m/s, find the minimum length of the on-ramp.

Ответ:

To find the minimum length of the on-ramp, we need to use the formula: length = (v^2 - u^2)/(2*a)

Substituting the given values into the formula, we get: length = (11.4^2 - 7.1^2)/(2*3.4)

length = (130.56 - 50.41)/6.8

length = 80.15/6.8

length = 11.8 m

Therefore, the minimum length of the on-ramp is 11.8 m.

Объяснение: