A ball rolls down a ramp of height h. If it has a mass m and radius r, what is t
Practice Questions
Q1
A ball rolls down a ramp of height h. If it has a mass m and radius r, what is the potential energy at the top?
mgh
1/2 mgh
2mgh
3mgh
Questions & Step-by-Step Solutions
A ball rolls down a ramp of height h. If it has a mass m and radius r, what is the potential energy at the top?
Correct Answer: PE = mgh
Step 1: Identify the height of the ramp, which is given as 'h'.
Step 2: Identify the mass of the ball, which is given as 'm'.
Step 3: Understand that potential energy (PE) is the energy an object has due to its position.
Step 4: Recall the formula for potential energy at a height, which is PE = mgh.
Step 5: Substitute the values of mass (m), gravitational acceleration (g), and height (h) into the formula.
Potential Energy – The energy possessed by an object due to its position in a gravitational field, calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.
