torijohnson torijohnson

09-10-2016
Physics

contestada

A sprinter has a mass of 80 kg and a KE of 4000 J. What is the sprinter’s speed?

Respuesta :

MATTG99 MATTG99

09-10-2016

There you go.

Hope this helps!

Ver imagen MATTG99

Answer Link

10-10-2016

   Kinetic Energy = (1/2) (mass) (speed)²

   4,000 J = (1/2) (80 kg) (speed)²

Divide each side
by 40 kg : 4,000 J / 40 kg = speed²

100 m²/s² = speed²
Square root
each side:    10 m/s = speed

Answer Link

Otras preguntas

Riverrocks realizes that it will have to raise the financing for the acquisition of raft adventures by issuing new debt and equity. the acquisition project has

which technique often results in the greatest habitat loss a. silverculture b. clear- cutting c. thinning d. shelterwood harvests

a student wrote this:"A triangular prism has a height of 15 inches and a base area of 20 square inches. The volume of the prism is 300 square inches." Identify

A bag contains 10 counters. 6 of them are white. a counter is taken at random and not replaced. A second counter is taken out of the bag at random. Calculate th

Jovie is maintaining a camp fire. She has kept the fire steadily burning for 101010 hours with 151515 logs. She wants to know how many hours (h)(h)left parenthe

A statistics student is doing a project for her class. She wants to make a prediction for the outcome of an upcoming national election. Since there are only two

how did pearl habor reunite Americans?

Matt is applying for the position of a sales manager in an apparel outlet but he has little experience as a manager. He wants to add evidence to his resume that

Tom is opening a bakery, and he purchases a new oven and other food production appliances. Which economic question has Tom answered? (5 points) For whom to prod

Brainliest + Points! I need help please explain