genier113 genier113

07-01-2016
Physics

contestada

A sprinter has a mass of 80kg and a kinetic energy of 4000 j. What is the sprinter's speed

Respuesta :

pingwin09 pingwin09

07-01-2016

The formula of the kinetic energy is KE = 0.5*m*v^2.
Given m = 80 kg and KE = 4000 J,
4000 = 0.5*80*v^2
v^2 = 100
v = 10 m/s

Answer Link

Otras preguntas

What's peculiar about some of Stevenson's most admired works? a. It took him only six months to write five books. b. He was illiterate, so he had a ghost writ

The scale of a map is 1/8 = 10 miles. If 2 cities are 3 inches apart on the map, how many mikes are they from each other? A.) 24 B.) 80 C.) 120 D.) 240 E.) None

The students were writing a play

what is potential difference

Liam did an investigation to see how water temperature affects the amount of salt that will dissolve in the water. He filled 4 beakers with exactly 100 millilit

You need 480 mL of a 50% alcohol solution. On hand, you have a 40% alcohol mixture. How much of the 40% alcohol mixture and pure alcohol will you need to obtain

URGENT PLEASE HELP ME WITH THIS MATH QUESTION

Congressional Reconstruction was undermined and abandoned as a result of all of the following developments except: A.) The continued opposition of Southern w

The chemicals released in a synapse when a signal passes through are _________. The chemicals released in a synapse when a signal passes through are ________

What major criteria must a product or process meet in order to be considered emerging technology?