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3 years ago

Which of the following is not an example of approximate simple harmonic motion? A. a ball bouncing on the floor

Physics

1 answer:

Reptile [31]3 years ago

3 0

<h2>Answer:</h2>

Answer to this question is (A)

<h2>Explanation</h2>

A ball bouncing on the floor is not the example of simple harmonic motion. SHM is the special kind of to and fro motion in which a particle oscillate about its mean position in a straight line. The acceleration of the particle is always directed towards its mean position and is directly proportional to its displacement from its mean position.

In case of a ball bouncing on the ground, the motion of the ball is not SHM, as neither it’s a to and fro motion nor the acceleration is proportional to its displacement from its mean position.

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Decreasing the trains velocity will ______ the kinetic energy.<br><br> Decrease or Increase

alex41 [277]

Decreasing the trains velocity will DECREASE the kinetic energy

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3 years ago

The white dwarf that remains when our sun dies will be mostly made of

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Answer:

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3 years ago

If kinetic energy of a body is decreased by 10percent then decrease in linear momentum of that body

algol [13]

Answer:

E = 1/2 M V^2 = 1/2 P V since P = M V

E2 / E1 = P2 V2 / (P1 V1)

P2 / P1 = E2 V1 / (E1 V2) = V2^2 V1 / (V1^2 V2) = V2 / V1

E2 / E1 = V2^2 / V1^2

V2 / V1 = (E2 / E1)^1/2

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The linear momentum would have to decrease by 5%

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2 years ago

Two blocks on a frictionless horizontal surface are on a collision course. one block with mass 0.6 kg moves at 0.8 m/s to the ri

Elanso [62]

First we can say that since there is no external force on this system so momentum is always conserved.

$m_1v_{1i} + m_2v_{2i} = m_1v_{1f} + m_2v_{2f}$

$0.6*0.8 + 1.2*0 = 0.6*v_{1f} + 1.2*v_{2f}$

$0.48= 0.6*v_{1f} + 1.2*v_{2f}$

$0.8 = v_{1f} + 2v_{2f}$

now by the condition of elastic collision

$v_{2f} - v_{1f} = 0.8 - 0[\tex]now add two equations[tex]3*v_{2f} = 1.6$

$v_{2f} = 0.533 m/s$

also from above equation we have

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So ball of mass 0.6 kg will rebound back with speed 0.267 m/s and ball of mass 1.2 kg will go forwards with speed 0.533 m/s.

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3 years ago

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lbvjy [14]

Answer:

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Explanation:

Hyper physics .com AND BRAINLIEST WOULD BE APPRECIATED

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3 years ago