Get the information you need from a community of experts on IDNLearn.com. Our Q&A platform offers reliable and thorough answers to help you make informed decisions quickly and easily.

Ignoring air resistance, the velocity of an object, v, in meters per second can be found after the object has fallen h meters by using the formula v=â19.6h. Find the velocity of a rock that has fallen 21 meters after being dropped from a cliff.