eliphat7
eliphat7 eliphat7
  • 17-10-2018
  • Physics
contestada

An object has 100 J of kinetic energy and a mass of 2 g. How fast was it traveling? 

Respuesta :

taibamah taibamah
  • 17-10-2018

k.e = 1/2 mv²

v is speed

100 = 1/2 × 2 . v²

100  =  both 2 cancel each  other . v²

Taking square root on b/s

√100 = √v²

10  =  v  =  speed

100

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