Angelito wanted to lose weight by dieting and exercising. One day, he only had a loaf of bread with an energy content of 2.50 x 10^5 J for his breakfast. To exercise, he lifted a 28.34kg to a height of 0.5m. How many times must he lift and lower the barbell to burn 1.25 x 10^4 J?
4 answers
I don't know the answer! Please help me!
90
how did you get 90?if you wouldn't mind me asking
NAME?