A box lies in the open back of a truck. The coefficient of static friction between the box and the and the truck is 0.20. What is the maximum acceleration of the truck without causing the box to slide?

The  maximum  velocity is  

Explanation:

From the question we are told that

      The coefficient of static friction is  

Generally the maximum acceleration can be mathematically represented as

Where g is  the acceleration due to gravity and the value is  

substituting vlues

answer and explanation;

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.