zeinaalami08 zeinaalami08
  • 04-03-2021
  • Physics
contestada

How fast is a 90kg man running if his kinetic energy is 720 J?

Respuesta :

lolzyuh
lolzyuh lolzyuh
  • 04-03-2021
Answer:
4 m/s
Explanation:
KE=1/2mv^2
720=1/2(90)
720=45v^2
divide by 45
16= v^2
over the square root
4=v
v= 4m/s
Answer Link

Otras preguntas

Given the balanced equation representing a reaction: 4Al(s) + 3O2(g) ==> Al2O3(s) As the aluminum loses 12 moles of electrons, the oxygen (1) gains 4 moles o
Compared to the charge of a proton, the charge of all electron has (1) a greater magnitude and the same sign (2) a greater magnitude and the opposite sign (3)
Which of the following does a business setting call for? formal language avoiding slang a detached tone professionalism all of the above all of the above except
At what type of plate boundary do compression and subduction take place?
Who is in charge of the executive branch?
Find the GCF of each set of trinomials 60x^2y^2 , 35xz^3
which is understanding of classification an important skill
When must all men register for the Selective Service?
What is the gram-formula mass of Fe(NO3)3? (1) 146 g/mol (3) 214 g/mol (2) 194 g/mol (4) 242 g/mol
What is the color of the indicator thymol blue in a solution that has a pH of 11? (1) red (3) pink (2) blue (4) yellow