eaglesisaiah424 eaglesisaiah424
  • 17-01-2020
  • Mathematics
contestada

How much kinetic energy has 5 gram bullet speeding at 100 m/s

Respuesta :

bayosanuade
bayosanuade bayosanuade
  • 17-01-2020

Answer: 25J

Step-by-step explanation:

K.E = [tex]\frac{1}{2}[/tex]m[tex]v^{2}[/tex]

Where ;

m = mass in kg

v = speed

Given:

m = 5g = 0.005kg ( we divided by 1000 to convert g to kg)

v = 100 m/s

Therefore :

K.E = [tex]\frac{1}{2}[/tex] x 0.005 x [tex]100^{2}[/tex]

K.E = 25 Joules

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