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TEA [102]
4 years ago
12

At the bottom of its swing, does the pendulum have kinetic potential energy?

Physics
1 answer:
san4es73 [151]4 years ago
8 0

Answer:

An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest. An ideal pendulum system always contains a stable amount of mechanical energy, that is, the total of kinetic plus potential energy.

Explanation:

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A force F acting on an object of mass m causes a displacement d. The angle between these two vectors is Θ. The work W done on th
777dan777 [17]
Work:
W= \int\limits^b_a {F.} \, ds

F: force
ds: displacement

Assuming the work is constant:

W= \int\limits^b_a {F.} \, ds =  F . d = F * cos\theta * d

d displacement


4 0
3 years ago
1. A truck was pulling a R.V. Away from the end of the cliff. The chain broke and the RV fell to the ground. If the truck had an
shepuryov [24]

Answer:

The force of impact, F = 17682.18 N

Explanation:

Given,

The initial velocity of the truck and associated velocity of RV, u = 2 m/s

The height of the cliff, h = 280 ft

                                        = 85.344 m

The mass of the RV, m = 1800 Kg

The total energy of the RV at height, 'h' with velocity, 'v', E = P.E + K.E

                                P.E = mgh J

                                       = 1800 x 9.8 x 85.344

                                      = 1505468.16 J

                                K.E = mv²/2

                                       = 1800 x 2² / 2

                                      =3600 J

Therefore total energy, E = 1509068.16 J

This is equal to the kinetic energy of RV at the impact.

The force of impact,

                                      F = E/h

                                         = 1509068.16 J / 85.344 m

                                         = 17682.18 N

Hence, the force of impact of RV is, F = 17682.18 N

8 0
3 years ago
Activity 4 | Solve the missing piece
Soloha48 [4]

Answer:

<u>69</u>

Explanation:

4376

7 0
4 years ago
V1= 25 L<br> T1= 200 degrees Kelvin<br> V2= 30 L<br> T2= ? degrees Kelvin
IceJOKER [234]
25x = 200*30
25x= 6000
x= 240
6 0
3 years ago
Who is in responsible for the grading process? (in terms of $)
Juliette [100K]

Answer: Dr. William Herbert Sheldon

The Sheldon Coin Grading Scale is an internationally accepted, 70-point assessment of a coin's condition and quality. It was originally developed by Dr. William Herbert Sheldon in 1949 in order to grade large cents. His scale was slightly modified in the 1970s to account for a wider range of coins.

6 0
3 years ago
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