Some jellyfish can eject stingers with remarkable force and speed. One species does this by building up a 15 MPa gauge pressure that pushes against the base of a 2.0-μm-diameter stylet, forcing it outward.

A. What force does the excess pressure exert on the stylet? and Units.

B. The mass set into motion is a tiny 1.0×10−12kg. What is the resulting acceleration? and Units.

powerful computers now, not then

it has to be b, about 97 percent.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.