Answered

Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Hunter and his workout partner arelifting weights together, doing manysets of each exercise. On a certainexercise, Hunter is using a 19-kilogram bar, increasing the amount ofweight he lifts by 2 kilograms on eachset. His partner, meanwhile, startedout using a 15-kilogram bar and isupping the weight by adding 6kilograms on every set. Eventually,Hunter and his workout partner will belifting the same amount, and will taketurns using the same barbell. Howmany sets will they have completed?How much weight will they be liftingthen?

Sagot :

sqdancefan

9514 1404 393

Answer:

  • 1 set completed
  • 21 kg

Step-by-step explanation:

The difference in mass of the bars is 19-15 = 4 kg. The difference in mass of the added weight is 6-2 = 4 kg. The difference in total mass (bar +added) is reduced by the difference in added mass after each set. The number of sets required to reduce the difference to zero is ...

  (4 kg)/(4 kg/set) = 1 set

After 1 set, Hunter will increase the mass to 19 kg + 2 kg = 21 kg.

After 1 set, his partner will increase the mass to 15 kg +6 kg = 21 kg.

Both will be lifting 21 kg for their 2nd set, after they have completed 1 set.

_____

Additional comment

You can write equations for the mass being lifted by Hunter (h) and his partner (p) after s sets:

  h = 19 +2s

  p = 15 +6s

The masses will be equal when ...

  h = p

  19 +2s = 15 +6s

  19 = 15 +4s . . . . . . . subtract 2s

  4 = 4s . . . . . . . . . . . subtract 15

Note that the number on the left side of the equation is 19-15, the difference of bar masses. The coefficient on the right side is 6-2, the difference in the added masses. To find the number of sets (s), we divide the equation by the coefficient of s:

  4/4 = s = 1

In the above solution we skipped directly to this final division in order to find the number of sets until the lifted masses were equal.

Answer:

again '-'hahahahaahahhaha

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.