Under what conditions is energy conserved
1 answer:
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Answer:
The kinetic energy of the heavier block after the push is equal to the kinetic energy of the lighter block
Explanation:
Kinetic energy of smaller object
where m= mass of smaller object and v= velocity of smaller object
Also, it is given that heavier object is four times the mass of lighter object and consider its velocity as V
kinetic energy of heavier block
Now, For smaller block ,
[by Newtons laws of motion]
Also,
Where S= displacement, F= force, u= initial velocity
So,
For heavier block ,
or,
So,
Therefore the kinetic energy of the heavier block after the push is equal to the kinetic energy of the lighter block