An object has a mass of #4 kg#. The object's kinetic energy uniformly changes from #96 KJ# to # 280 KJ# over #t in [0, 12 s]#. What is the average speed of the object?
1 Answer
Feb 16, 2017
The average speed is
Explanation:
The initial kinetic energy is
So,
The final kinetic energy is
So,
On a graph velocity v/s time, we have a straight line
Area of
The average speed
so,