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3 years ago

What are the relationships between position, velocity, and acceleration as it relates to time?

Physics

2 answers:

Ber [7]3 years ago

5 0

Velocity = distance /time
acceleration = velocity / time

Lostsunrise [7]3 years ago

5 0

Your velocity is the rate at which your position changes over time, and your acceleration is the rate at which your velocity changes over time :)

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Which of the 3 states of matter is easier to increase the temperature by one degree; in a liquid, in a solid, or in a gas?

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Answer:

gas

Explanation:

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4 years ago

As a quality test of ball bearings, you drop bearings (small metal balls), with zero initial velocity, from a height of 1.94 m i

11Alexandr11 [23.1K]

Answer:

The average acceleration of the bearings is $0.77\times10^{3}\ m/s^2$

Explanation:

Given that,

Height = 1.94 m

Bounced height = 1.48 m

Time interval $t=14.86\times10^{-3}\ s$

Velocity of the ball bearing just before hitting the steel plate

We need to calculate the velocity

Using conservation of energy

$mgh=\dfrac{1}{2}mv^2$

Put the value into the formula

$9.8\times1.94=\dfrac{1}{2}\times v^2$

$v=\sqrt{2\times9.8\times1.94}$

$v=6.166\ m/s$

Negative as it is directed downwards

After bounce back,

We need to calculate the velocity

Using conservation of energy

$mgh=\dfrac{1}{2}mv^2'$

Put the value into the formula

$9.8\times1.48=\dfrac{1}{2}\times v^2'$

$v'=\sqrt{2\times9.8\times1.48}$

$v'=5.38\ m/s$

We need to calculate the average acceleration of the bearings while they are in contact with the plate

Using formula of acceleration

$a=\dfrac{v-v'}{t}$

Put the value into the formula

$a=\dfrac{5.38-(-6.166)}{14.86\times10^{-3}}$

$a=776.98\ m/s^2$

$a=0.77\times10^{3}\ m/s^2$

Hence,The average acceleration of the bearings is $0.77\times10^{3}\ m/s^2$

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3 years ago

ANSWER ASAP PLZZZZ!!!!!!!!

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Answer: your correct answer is a i took the test

Please i need brainlist i need one more and i level up :)

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3 years ago

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