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A moving object has a kinetic energy of 130 j and a momentum of 27.4 kg·m/s. a.find the speed of the object. answer in units of m/s.
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A moving object has a kinetic energy of 130 j and a momentum of 27.4 kg·m/s.

a.find the speed of the object. answer in units of m/s.

User SMor
by
7.9k points

1 Answer

3 votes
(mv^2)/2=130
m=260/v^2---------------(1)
p=mv
mv=27.4------------------(2)
sub (1) into (2):
(260/v^2)*v=27.4
v=9.49ms^-1(correct to 3 significant figures)
User Sanjeet Kumar
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7.7k points
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