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Ann [662]
2 years ago
11

Define acceleration what it's formula​

Physics
2 answers:
Paha777 [63]2 years ago
4 0

Answer:

The definition of acceleration is a change in the rate of motion, speed or action.

<h2>hope it helps.</h2><h2>stay safe healthy and happy..</h2>

Sever21 [200]2 years ago
3 0

Acceleration is the rate of change of velocity.

acceleration =  \frac{(final \: velocity - initial \: velocity)}{time} \\ or \\ a =  \frac{(v - u)}{t}  \\  \\ The \: S.I. \: unit \: of \: acceleration \: is \:  \frac{m}{ {s}^{2} } \: or \: m {s}^{ - 2}.

My last year's notes on acceleration is attached. Hope it helps you!!

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Four identical charges, Q, occupy the corners of a square with sides of length a. A fifth charge, q, can be placed at any desire
Nat2105 [25]

Answer:

  q = - ( 2*sqrt(2) + 1 )*Q / 4

Explanation:

Given:

- Side of each square L = a

- Charge q is placed among 4 other identical charges Q.

Find:

- Find the location and magnitude of the fifth charge q such that net Electric Force at its position is zero.

Solution:

- Compute distance r  from charge Q to q i.e center of all four charges Q:

                          r = 0.5*sqrt ( a^2 + a^2 )

                          r = a / 2sqrt(2)

- Compute the individual Electrostatic forces @ point A:

                          F_b = F_d = k*Q^2 / a^2

                          F_c = k*Q^2 / (a*sqrt(2))^2 = k*Q^2 / 2*a^2

                          F = k*Q*q / (a / 2sqrt(2))^2 = 2*k*Q^2 / a^2

- Use Electrostatic Equilibrium conditions:

                          F_b + F_c*cos(45) = F*cos(45)

                          F_d + F_c*sin(45) = F*sin(45)

- Plug in the values and equate:

                          { (Q/a)^2 + (Q^2 / 2*a^2*sqrt(2)) = sqrt(2)*Q*q / a^2

- Canceling all k's and a^2:

                          Q * ( 1 + (1 /2*sqrt(2)) ) =  sqrt(2)*q

                          q = - ( 2*sqrt(2) + 1 )*Q / 4

- Note: In attachment Q's and q's are interchange but the solution here provided is according to the question at hand.

3 0
3 years ago
Which one of the following is correct? *
slamgirl [31]

Answer:

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6 0
3 years ago
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3 0
3 years ago
75 kilometers per hour is an example of:<br> A. speed.<br> B. velocity<br> C. acceleration
kherson [118]
The answer is A. speed
hope this helps! :D

5 0
2 years ago
Read 2 more answers
What is this? Plz I need help...
RSB [31]

Answer:

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Explanation:

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3 years ago
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