Amotor way designer can assume that cars approching a motorway enter a slip road with a velocity of 10m/s and reach a velocity of 30m/s before joining the motorway. calculate the minimum length for the slip road, assuming that vehicles have an acceleration of 4.0m/s2

   The minimum length for the slip road = 100 meter.

Explanation:

We have equation of motion, , where u is the initial velocity, u is the final velocity, s is the displacement and a is the acceleration.

 In this case initial velocity = 10 m/s, final velocity = 30 m/s and acceleration = , we need to find displacement.

 Substituting

  The minimum length for the slip road = 100 meter.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2