Plz i really need this

directions: for each situation, you need to determine if the object has ke or gpe or both. then find their values. be sure to include the correct units.

1. a 2-kg bowling ball sits on top of a building that is 40 meters tall.

circle one: ke / gpe / both

show your work for finding the values of each type of energy the object has:

2. a 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall.

circle one: ke / gpe / both

show your work for finding the values of each type of energy the object has:

3. a 2-kg bowling ball rolls at a speed of 10 m/s on the ground.

circle one: ke / gpe / both

show your work for finding the values of each type of energy the object has:

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s.

circle one: ke / gpe / both

show your work for finding the values of each type of energy the object has:

part 2: finding speed and height using energy

directions: use the ke and gpe equations to solve for speed or height depending on the situation.

1. a 1,000-kg car has 50,000 joules of kinetic energy. what is its speed?

2. a 200-kg boulder has 39,200 joules of gravitational potential energy. what height is it at?

3. a 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. what is its speed? what is its height?