You are launching a 2-kg potato out of a potato cannon. The cannon is 1.5 m long and is aimed 30 degrees above the horizontal. It exerts a 50 N force on the potato. What is the kinetic energy of the potato as it leaves the muzzle of the potato cannon?
1 Answer
Feb 1, 2018
60 J
Explanation:
The net force on the potato is given by:
Using Newton's 2nd Law we get:
Now we can use the equation of motion:
This is the exit velocity of the potato.