A10 kg ball strikes a wall with a velocity of 3 m/s to the left. the ball bounces off with a velocity of 3 m/s to the right. if the ball is in contact with the wall for 0.22 s. what is the constant force (in newtons) exerted on the ball by the wall during the impact? report your answer as a positive number.

The force is 272.73 newtons

Explanation:

We're going to use impulse-momentum theorem that states impulse is the change on the linear momentum this is:

(1)

Impulse is also defined as average force times the time the force is applied:

(2)

By (2) on (1):

solving for :

(3)

We already know Δt is equal to 0.22 s, all we should do now is to find and put on (3) ( the initial momentum and the final momentum). Linear momentum is defined as , using that on (3):

(4)

Velocity (v) are vectors so direction matters, if positive direction is the right direction and negative direction left and so (4) becomes:

(5)

Using (5) on (3):

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .