An object of mass weighing 5.24 kilograms is raised to a height of 1.63 meters. what is the potential energy of the object at that height? note that acceleration due to gravity is 9.8 meters/second2.

Find force,
9.8 m/s2 x 5.24 kg = 51.352 N

Find work,
51.352 N x 1.63 m=  83.70 N*m

Example:
To solve this given word problem we can first identify the given and the apt formula to use in this phenomenon: Given: Force = 4, 500 N = 4, 500 kg-m/s^2 Acceleration = 5 m/s^2   
Formula: f=ma 
Derivation: m = f/a 
Solution: 
1.    M = f/a 
2.    M = 4,500 kg-m/s^2 / 5 m/s^2 
3.    M = 900 kg   

Hence, the object’s mass is 900 kg.

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.