Question

1. samson combined his upright row and shoulder press into one exercise. starting with the weight on the ground, he completed an upright row raising the mass of his lift 1.2 meters. next, he pressed the weight above his head an additional 1.3 meters. samson completed this exercise three times. in joules, how much work did samson complete?

exercise	force in newtons	work in joules
1 shoulder press
3 combined

Explanation:

Step1: Calculate work for upright row

Work formula is \(W = F\times d\). Given \(F = 225\space N\), \(d = 1.2\space m\).
\(W_{upright}=225\times1.2 = 270\space J\)

Step2: Calculate work for shoulder press

Given \(F = 225\space N\), \(d = 1.3\space m\)
\(W_{shoulder}=225\times1.3=292.5\space J\)

Step3: Calculate work for one combined exercise

\(W_{one\space combined}=W_{upright}+W_{shoulder}=270 + 292.5=562.5\space J\)

Step4: Calculate work for three combined exercises

\(W_{three\space combined}=3\times562.5 = 1687.5\space J\)

Answer:

Exercise	Force in Newtons	Work in Joules
1 Shoulder Press	\(225\)	\(292.5\)
3 Combined	\(225\)	\(1687.5\)