The coordinate system should have the origin at the point where the feather is dropped and the downward direction is to be taken as positive.
All falling bodies experience acceleration towards the center of the Earth due to the force of gravitational attraction exerted on the object by the Earth. A feather, when dropped experiences an acceleration in the downward direction. Since the acceleration of the feather is in the downward direction, a feather, when dropped with zero initial velocity, has its velocity vector directed in the direction of its acceleration.
If the downward direction is taken as positive, the falling feather can be said to have a positive velocity and a positive acceleration.
Answer:
The answer is 'an equinox'.
Answer:
b. force= mass *acceleration
Explanation:
Answer:

Explanation:
Given



Required
Determine the impulse
The impulse is calculated as follows:

Substitute values for Force and Time


<em>Hence, the impulse experienced is 8.0Ns</em>
Right before it breaks of, because all the other options are examples of Kinetic energy while the A. answer is the only one describing potential energy.