yes, at that instant the bungee jumper is in equilibrium because the weight of the bungee jumper is balanced by the spring force as the spring force is acting in upwards direction and the weight of the jumper acts in downwards direction. So, that the net force on the jumper is zero and the net acceleration of the jumper is zero.
This can be explained when we consider a bungee jumper as a mass that is undergoing simple harmonic motion. At extreme points i.e. at the bottom, the velocity of the jumper is zero but not the acceleration because it is acting in the opposite direction that is why the jumper moves upward.
<u>The sun is a star, which is about billion times brighter as the reflected light from any planet orbiting around it. </u>
The brightness is based on its composition and its position from the planet. The sun happens to be the brightest star on the Earth's sky which is about 13 billion times brighter than the next brightest star.