Answer:
A.
Explanation:
If its at a height the Gratitude of it falling down with only Gravity if Any other Forces are acting on it so as Friction But Sideways.
B. An apple about to fall from a tree branch
This is because potential energy is the energy before its actuall motion, or before kinetic energy (energy in motion). And the apple ABOUT TO FALL mentions a gravitational example.
Hi!
The correct answer is : <u>either stretch or compress the spring</u>
<h3>Explanation</h3>
The spring constant, denoted commonly as k, is a component of Hooke's law which describes the force that is required to compress or stretch an object to be directly proportional to the length of extension or compression.
F ∝ x
where F is the force applied to the spring, and x is the length of extension or compression.
The equation of Hooke's law is consequently
F = kx
where k is a non zero constant, known as the spring constant.
<h3>Hope this helps!</h3>
