A weightlifter curls a 35 bar, raising it each time a distance of 0.70 .
How many times must he repeat this exercise to burn off the energy in one slice of pizza? Assume 25% efficiency.
1 slice of pizza = 300C = 1260kJ
Express your answer using two significant figures.
The weightlifter will use the 1260 kJ (at 25% efficiency)
(1.26 10 ^6J) (0.25) = n x 35 x 9.8 x 0.70
Solving for n gives 1311.9 times
A weightlifter curls a 35 bar, raising it each time a distance of 0.70 . How many times must he repeat this e...
Review | Constants 1 Periodic Table A weightlifter curls a 30 kg bar, raising it each time a distance of 0.50 m. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. How many times must he repeat this exercise to burn off the energy in one slice of pizza? Assume 25% efficiency. Energy content of one slice of pizza is 1260 kJ. IVO ΑΣΦ