The change in the gravitational potential energy is represented by the equation
u = ΔPE = Δmgh
since the mass of the system will remain constant and the acceleration due to gravity will also remain constant, the equation will become
u = mg Δh
Answer:
Check the attached image below.
Explanation:
Kindly check the attached image below to get the step by step explanation to the above question.
Answer:
b. 3 m
Explanation:
The computation of the distance travelled is shown below:
As we know that
Work done = Horizontal Force × distance travelled
360 J = 120 N × discount travelled
So, the distance travelled is
= 360 J ÷ 120 N
= 3 m
hence, the correct option is b. 3 m
Answer:
a) 
b) 
Explanation:
From the exercise we have <em><u>initial height and final X position</u></em>


a) From the concept of <u>free falling objects</u> we have that

Since the car runs off the edge of the table, that means the car is moving in x direction with
and at the end of the motion 

<em><u>Solving for t </u></em>
t=± 0.6072 s
Since the time can not be negative, the answer is t=0.6072 s
b) To find the <u>horizontal velocity</u> of the car, we need to use the time that we just calculate

