An object has a mass of #6 kg#. The object's kinetic energy uniformly changes from #18 KJ# to # 4KJ# over #t in [0,12s]#. What is the average speed of the object?
1 Answer
Feb 12, 2018
9.47 m/s
Explanation:
Based on the given values, the power loss (which is the constant here) is
so
We can then find the velocity at any time based on that equation:
From that equation, we can find its average:
I hope the calculus is comfortable to you.