a hammer of mass 1kg falls from 2m height calculate if, velocity (1)kinetic energy does velocity of hammer depends on the mass
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Here's your answer...
m = 1 kg
h = 2 m
Since the hammer is dropped, u = 0
v² = u² + 2gh
v² = 0+2×10×2 (taking g as 10 instead of 9.8 for simplicity)
v² = 40
v = 2 root 10
KE = ½mv²
= ½×1×40
= 20 J
In the equation to find v, the quantity m was not used. This makes the velocity independent of mass of the object. Which means that a hammer and a marble dropped from the same height will hit the ground at the same time with the same velocity.
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Here's your answer...
m = 1 kg
h = 2 m
Since the hammer is dropped, u = 0
v² = u² + 2gh
v² = 0+2×10×2 (taking g as 10 instead of 9.8 for simplicity)
v² = 40
v = 2 root 10
KE = ½mv²
= ½×1×40
= 20 J
In the equation to find v, the quantity m was not used. This makes the velocity independent of mass of the object. Which means that a hammer and a marble dropped from the same height will hit the ground at the same time with the same velocity.
[0110100101]... More questions detected... [010110011110]
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The first person is correct
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