Question

What can you say about the kinetic energy of a light and heavy mass having same linear momentum ? Explain your answer

Answer 1

• The momentum is the product of mass and velocity. Also Kinetic energy is the energy possess by virtue of motion of the body. Thus if the Kinetic energy of two bodies is same, that means they are moving with same velocity. ... mh and ml are masses for heavy and light body respectively.

Answer 2

Answer:

et us analyse these two cases by assuming the mass of the lighter body to be m and heavier body to be M. If p and P are the momentums of the lighter and heavier bodies respectively, then their kinetic energies may be expressed as:

2m

p  

2

 

​  

=  

2M

P  

2

 

​  

 

or,  

P

p

​  

=  

M

m

​  

 

​  

 

or, p=P  

M

m

​  

 

​  

 and P=p  

m

M

​  

 

​  

 

Thus from these equations we can conclude that the heavier mass, M has greater momentum P.

Explanation:

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