a bucket of unstretched springs (k=8 N/m) resting on the ground.Calculate the bucket's Mechanical Energy in [J}
1 answer:
Answer:
0 J
Explanation:
The mechanical energy of a spring is given by where k is spring constant and x is extension of spring. Since the spring is unstretched, its extension is zero.
#Notice that the potential energy is 0.
-Substituting spring constant, k with 8 and extension with zero then the mechanical energy will be
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The correct answer is 2.8s
Answer:
Explanation:
From, the given information: we are not given any value for the mass, the proportionality constant and the distance
Assuming that:
the mass = 5 kg and the proportionality constant = 50 kg
the distance of the mass above the ground x(t) = 1000 m
Let's recall that:
Similarly, The equation of mption:
replacing our assumed values:
where
So, when the object hits the ground when x(t) = 1000
Then from above derived equation:
By diregarding
1000 + 0.981 = 0.981 t
1000.981 = 0.981 t
t = 1000.981/0.981
t = 1020.36 sec