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3 years ago

What is the difference between an elastic and inelastic collision

Physics

1 answer:

barxatty [35]3 years ago

4 0

Answer:

In an elastic collision, the total kinetic energy is conserved, while in an inelastic collision, it is not

Explanation:

Let's define the two types of collision:

- Elastic collision: an elastic collision is a collision in which:

1) the total momentum of the system is conserved

2) the total kinetic energy of the system is conserved

Typically, elastic collisions occur when there are no frictional forces acting on the objects in the system, so that no kinetic energy is lost into thermal energy. An example of elastic collision is the collision between biliard balls.

- Inelastic collision: an inelastic collision is a collision in which:

1 ) the total momentum of the system is conserved

2) the total kinetic energy of the system is NOT conserved

In an elastic collision, part of the total kinetic energy is lost (=converted into thermal energy) due to the presence of frictional forces. An example of inelastic collision is the accident between two cars, in which part of the energy is converted into heat.

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Rock X is released from rest at the top of a cliff that is on Earth. A short time later, Rock Y is released from rest from the s

babunello [35]

Answer:

Separation increases at all times that rock X falls because it falls with a greater speed

Explanation:

For both rocks, let initial velocity ∪=0

To find the displacement at any given time interval of Δt then

S= ∪Δt +0.5gΔt²

Since rock X is first released followed by Y, then X has a greater speed than Y therefore the distance covered by X is longer. This is because despite 0.5gΔt² being same for both rocks at any time Δt but rock X having already attained some velocity, its ∪Δt is more hence the separation S increases. Conclusively, S increases at all times that rock X falls since rock X falls with a greater velocity than rock Y

7 0

3 years ago

A tennis player player receives a shot with the ball (.06kg) travelling horizontally at 50.0 m/s and returns the shot with the b

ahrayia [7]

Let:

m- 0.0600Kg 
v1- +50.0 m/s 
v2- -42 m/s 

a) 

momentum1 - momentum2 = impulse 
p1 - p2 = Ft 
m(v1 + v2) = Ft 
Ft = 0.54 N-s 

b) 

Work is traditionally force times distance but an easy way to get through this one is to think logically and keep your units straight: 

The racket creates an overall velocity of 90 m/s for the ball: 

W=(Ft)*(V) 
W=0.54 N-s * 90 m/s 
W=48.6 N-m = 48.6 J

3 0

3 years ago

Choose ne

Tju [1.3M]

Answer:

diamond

Explanation:

im not 100% sure so my bad if im wrong

6 0

2 years ago

Which particle have a mass of 1 u

Yuri [45]

Answer:

Explanation:

proton

4 0

2 years ago

Two hypothetical discoveries in Part A deal with moons that, like Earth's moon, are relatively large compared to their planets.

arlik [135]

Answer:

Unusually large moons form in giant impacts, which are relatively rare events

Explanation:

Solution:

- Finding large moons comparable in size to their planets result from impacts of two astro-bodies. The probability of such an event occurring is very rare.

- Even at the best luck, one moon can be made from the result of giant impact. While the probability of 6 planets having moons of comparable sizes is close to impossible. The transition from an undifferentiated cloud to a star system complete with planets and moons takes about 100 million years.

8 0

3 years ago