98J
Explanation:
Given parameters:
Mass of paint can = 5kg
Height of ladder = 2m
Unknown:
Work done = ?
Potential energy = ?
Solution:
Work done in moving the paint is the force applied under gravity to move it through the give height.
Potential energy is the energy due the position of a body at rest.
For this body:
The work done in moving the paint = Potential energy at the top of ladder = m x g x h
m is the mass of the pain can
g is the acceleration due to gravity
h is the height of the building
Input the variables;
Work done = 5 x 9.8 x 2 = 98J
Potential energy = 98J
learn more:
Potential energy brainly.com/question/10770261
#learnwithBrainly
The weight of air measured in units of force per area is called air pressure.
Answer:
The time taken is 
Explanation:
From the question we are told that
The speed of first car is 
The speed of second car is 
The initial distance of separation is 
The distance covered by first car is mathematically represented as

Here
is the initial distance which is 0 m/s
and
is the final distance covered which is evaluated as
So


The distance covered by second car is mathematically represented as

Here
is the initial distance which is 119 m
and
is the final distance covered which is evaluated as

Given that the two car are now in the same position we have that

