How much momentum will a dummb bell of mass 10 kg transfer to the floor if it falls from a height of 80cm ? take its downward acceleration to be 10 ms^ -2.
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How much momentum will a dummb bell of mass 10 kg transfer to the floor if it falls from a height of 80cm ? take its downward acceleration to be 10 ms^ -2.
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Hii Doraemon!
Your answer is as follows..
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We have,
And also,
Let us find the velocity of the bell,
u = 0 because it will be released from rest state.
Therefore, the velocity of the bell is 4 m/s
Put the values of mass and velocity in the formula of momentum;
Therefore, momentum of the bell on hitting the ground will be 40 kg m/s.
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