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linaaaa0496
02.12.2019 •
Physics
A2.50-kg stone is dropped from rest at a height of 3.75 m. what impulse does gravity impart to this stone from the instant it is dropped until it hits the ground, assuming negligible air resistance?
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Ответ:
The impulse is 21.41 kg-m/s.
Explanation:
Given that,
Mass of stone = 2.50 kg
Height = 3.75 m
We need to calculate the time
Using equation of motion
Where, s = height
u = initial speed
t = time
Put the value in the equation
We need to calculate the impulse
Using formula of impulse
Put the value into the formula
Hence, The impulse is 21.41 kg-m/s.
Ответ: