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2 years ago

11

A 2 kg ice cube is released from point A and slides on a frictionless track as shown in the figure. Determine the speed of the c

ube at points B and C.

1 answer:

kherson [118]2 years ago

8 0

According to the conservation of energy

Potential energy at any given instance is equal to the Kinetic energy as energy can neither be created nor be destroyed

Mass is 2kg=m

#A

h=5m

PE=mgh

PE

2(9.8)(5)
10(9.8)
98J

Now

KE=98J
1/2mv²=98J
1/2×2v²=98J
v²=98J
v=√98
v=9.4m/s

#B

h=3.2m

PE:-

2(3.2)(9.8)
6.4(9.8)
62.7J

Now

KE=62.7J
1/2mv²=62.7
v²=62.7
v=√62.7
v=7.9m/s

#C

h=2m

PE

2(2)(9.8)
4(9.8)
39.2J

Now

v²=39.2
v=√39.2
v=6.3m/s

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Answer:

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For a certain RLC circuit the maximum generator EMF is 125 V and the maximum current is 3.20 A. If le a) the impedance of the ci

MAXImum [283]

Answer:

Part (i)

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Part (ii)

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Explanation:

a) here we know that

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Part b)

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