PE = mgh
KE= 42 my2
G - given
R-required
E - equation
sbil s.- solution | 00 pop
wall
A - answer
Problem Sets
1. A bag of groceries with a mass of 6 kg is lifted to a height of 2 m. What is the
increase in potential energy of the bag at this point?
2. What is the increase in potential energy of a 4.5-kg barbell when it is
lifted by the weightlifter 1.5 m above the floor?
3. A 3-kg fish is swimming with a speed of 0.2 m/s. What is its KE?
4. What is the KE of an 8-kg object moving at a speed of 5 m/s?​