Question
The speed if a bullet of mass 20g is 216km/hr what is its kinetic energy in joules
Answers
Anonymous
m = 0.020 kg
v = 216 km/hr ( 1 hr/3600 s)(1000 meters /km) = 60 meters/s
Ke = (1/2)(0.020)(60)^2 Joules
v = 216 km/hr ( 1 hr/3600 s)(1000 meters /km) = 60 meters/s
Ke = (1/2)(0.020)(60)^2 Joules