If an object has a zero momentum ,does it have kinetic energy?Explain your answer.
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4
no it is beacuse momentum is a product of force and mass
Answered by
3
hey, here is your answer
The answer is No.
Let us relate both the eqs.
As we know,
p(momentum)=mass(m)* velocity(v) ……(1)
Kinetic Energy=1/2*m*v*v…(2)
Multiply eq. 2 with m/m.
K.E=1/2*m*v*v*m/m
K.E=m*m*v*v/2m
K.E=(mv)^2/2m……(3)
Put eq. 1 in eq.3
K.E=(p)^2/2m…..(4)
So,according to your question p=0
Now,substitute the value of p in eq 4
K.E=(0)^2/2m
K.E=0/2m
K.E=0.
Hence we concluded that if momentum is zero then kinetic energy would also be equal to zero.
The answer is No.
Let us relate both the eqs.
As we know,
p(momentum)=mass(m)* velocity(v) ……(1)
Kinetic Energy=1/2*m*v*v…(2)
Multiply eq. 2 with m/m.
K.E=1/2*m*v*v*m/m
K.E=m*m*v*v/2m
K.E=(mv)^2/2m……(3)
Put eq. 1 in eq.3
K.E=(p)^2/2m…..(4)
So,according to your question p=0
Now,substitute the value of p in eq 4
K.E=(0)^2/2m
K.E=0/2m
K.E=0.
Hence we concluded that if momentum is zero then kinetic energy would also be equal to zero.
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