Question 1: Two grade 8 science students, Jack and Jill are in the weightlifting room in their school. Jack lifts 100-pounds (45.36) barbel over his head 10 times in one minute while Jill lifts the same barbel over his head 10 times in 10 seconds. Which students delivers the most work? Explain which student delivers the most power?
Question 2: During their science laboratory class, Jack and Jill ran up stair. Jack is twice as massive as Jill: yet Jill ascends the same distance in half the time. Who did the most work? Explain who deliver the most power?