Rock 3, because it has the most mass while still moving at the same speed, it is kinetic because there is movement and energy being used
Answer:
No because you cannot see air so therefore it cannot make shadows
Explanation:
Answer:
speed and time are Vf = 4.43 m/s and t = 0.45 s
Explanation:
This is a problem of free fall, we have the equations of kinematics
Vf² = Vo² + 2g x
As the object is released the initial velocity is zero, let's look at the final velocity with the equation
Vf = √( 2 g X)
Vf = √(2 9.8 1)
Vf = 4.43 m/s
This is the speed with which it reaches the ground
Having the final speed we can find the time
Vf = Vo + g t
t = Vf / g
t = 4.43 / 9.8
t = 0.45 s
This is the time of fall of the body to touch the ground
The answer is a.12.5kg because i just did the test and it was correct.
hope this helps
Answer:
Explanation:
The force of attraction between 2 masses.
