THE ANSWER FOR UR QUESTION IS
WHICH COUNTRY OR REGION IS COAL RICH AND OIL POOR
ANS:- UNITED STATES IS THE COUNTRY WHICH IS COAL RICH AND OIL POOR
HOPE THIS HELPS!!!
^_^ HAPPY TO HELP U ^_^
The equations of motion can be used to obtain the velocity as 44.7 m/s.
<h3>How are the equations of motion used?</h3>
The equations of motion are used to solve questions that bother on kinematics. In this case, we are dealing with motion under gravity. In order to find the final velocity, we have to use the equation;
v^2 = u^2 + 2gh
- v = final velocity
- u = initial velocity
- g = acceleration due to gravity
- h = height
Since he dropped from a height, u = 0 m/s
v^2 = 0^2 + 2 (10) (100)
v^2 = 2000
v = √2000
v = 44.7 m/s
Learn more about equations of motion: brainly.com/question/8898885
Answer:
(c) 10.29 J
(d) 113.19 J
(e) 113.19 J
(f) 10061 N/m
Explanation:
15 cm = 0.15 m
Let g = 9.8 m/s2
(c) The work done by gravitational force is the product of gravity force and the distance compressed
(d) By using law of energy conservation with potential energy reference being 0 at the maximum compression point. As the ball falls and come to a stop at the compression point, its potential energy is transferred to elastic energy, which is the work that the mattress does on the ball:
where h = 1.5 + 0.15 = 1.65 m is the vertical distance that it falls.
(e) Before the compression, the potential energy of the mattress is 0. After the compression, the potential energy is 113.19J. So it has increased by 113.19J due to the potential energy transferred from the falling ball.
(f)