Complete Question
The complete question is shown on the first uploaded image
Answer:
The velocity of the bus at B is
Explanation:
Let's take position B as base point .
From the diagram height between point B and A ia mathematically evaluated as
From the question we are told that
The velocity at location A is
According the law of conservation of energy
Where is the potential energy at A which is mathematically represented as
is the kinetic energy energy at A which is mathematically represented as
is the kinetic energy at A which is mathematically represented as
Where is the velocity at location B
So
Making the subject of the formula
Substituting values