Which equations can be used to solve for acceleration? Check all that apply.t =
vf = at – vi
a =
vi = vf – at
v =
vf = at + vi
a =
Answers
Equations can be used to solve for acceleration
Further explanation
Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration
• An equation of uniformly accelerated motion
V = vo + at or vf = vi + at
Vt² = vo² + 2a (x-xo)
x = distance on t
vo / vi = initial speed
vt / vf = speed on t / final speed
a = acceleration
Acceleration is a change in speed within a certain time interval
a = Δv / Δ t
The velocity graph with respect to time (v-t) in this motion will be in the form of sloping straight lines with a gradient of tan θ = a
For acceleration that is positive (a> 0) is called accelerated motion, the graph is sloping upward, while for acceleration that is negative (a <0) is called slowed down motion, the graph is sloping downward
We complete the available answer choices
t = delta v over a.
vf = at - vi
a = d over t.
vi = vf - at
v = a over t.
vf = at + vi
a = delta v over t.
From the general equation of uniformly accelerated motion above, what is appropriate is:
1. t = delta v over a ---> can be used, a = v / t
2. vf = at - vi ---> cannot be used, it should be vf = vi + at
3. a = d over t .---> d = displacement has the formula: d = v x t, so this 3rd equation cannot be used
4. vi = vf - at ----> can be used
5. v = a over t ----> cannot be used, it should be v = a x t
6. vf = at + vi ---> can be used
7. a = delta v over t ----> can be used
So the equation that can be used to find acceleration is
1,4,6 and 7
Learn more
The distance of the elevator
resultant velocity
the average velocity
Related Questions
Find y when x=15 if y=6 when x=30
Choose exactly two answers that are correct.Shirley made a list of her expenses for the month. Which should be added to find the total for utilities? Choose exactly two answers that are correct. A. eating out B. emergency fund C. rent D. electric bill E. groceries F. water bill G. college savings Choose all answers that are correct. 5. (3 pt) Which should Ada include in her list of assets? Choose all answers that are correct. A. auto loan balance of $3157 B. retirement account balance of $294,122 C. rental property valued at $155,900 D. balance of $15,621 on her student loan E. home equity loan balance of $5159 Choose the answer. 6. (3 pt) Isidro’s net worth is $326,913. His total assets are $519,372. What is the total value of his liabilities? A. $846,285 B. –$846,285 C. $192,459 D. –$192,459 Sarah opened a simple interest savings account with $4000 in principal and an interest rate of 3.3%. How much is in the account after 6 years? simple interest: I = P • r • t A. $792.00 B. $860.29 C. $4792.00 D. $4860.29 Maria plans to use $18,000 to open a savings account with an annual interest rate of 7%. How much more interest will she earn over 6 years if she chooses an account that compounds interest quarterly instead of annually? interest compounded quarterly: A = P (1 + )4t interest compounded annually: A = P (1 + r)t $
How can u simplify 44/42?
2+3x=-4(5+2x) solve for x, help please
Answers
You would do the Reciprocal or Multiplicative Inverse.
You can never divide by a fraction. So instead, you find the recriprocal which is pretty much just flipping the numbers and operations. So instead of dividing, we would multiply. We'd also then flip 1/3 and say its 3/1.
Now your equation is *5 x 3/1* or *5 x 3*. Thats 15.
Answers
Answers
284 rounded to the nearest hundred is 300.
What is a place value?
Place value, which is related to a digit's location in a number, is the amount that each digit is worth.
Given:
The number is 284.
To round the number to the nearest hundred:
The digit in the hundredth place is 8.
And 8 > 4.
So, the number left to the number 2 will increase by 1.
And the number right next to 8 will become zero.
So, the value of 2 becomes 2 + 1,
and the rest number becomes zero.
So, 284 rounded to the nearest hundred is 300.
Therefore, the result is 300.
To learn more about the place value;
#SPJ2
Determine the area, in square meters, of the new rectangular garden.
Answers
The square area is expressed as:
A = a²,
where A is the area of the square, and a is the side of the square.
The rectangle area is expressed as:
A₁ = a₁ · b₁,
where A₁ is the area of the rectangle, and a₁ and b₁ are the sides of the rectangle.
After renovations, square garden becomes rectangular.
One side is doubled in length:
a₁ = 2a
The other side is decreased by three meters.
b₁ = a - 3
The new area is 25% than the original square garden:
A₁ = A + 25%A =
= A + 25/100·A
= A + 1/25·A
= a² + 1/25·a²
= a² + 0.25·a²
= 1.25·a²
If the starting equation is:
A₁ = a₁ · b₁
Thus, the equation is:
1.25a² = 2a·(a - 3)
1.25a² = 2a · a - 2a · 3
1.25a² = 2a² - 6a
Therefore, the equation that could be used to determine the length of a side of the original square garden is:
2a² - 6a = 1.25a²
Now, we will solve the equation:
2a² - 6a = 1.25a²
2a² - 1.25a² - 6a = 0
0.75a² - 6a = 0
⇒ a(0.75a - 6) = 0
From here, one of the multiplier must be zero - either a or (0.75a - 6). Since a could not be zero, (0.75a - 6) is:
0.75a - 6 = 0
0.75a = 6
a = 6 ÷ 0.75
a = 8
If the side of the square is 8, then the area of the rectangle is
A₁ = 1.25 · a²
A₁ = 1.25 ·8²
A₁ = 1.25 · 64
A₁ = 80
Therefore, the area of the new rectangle garden is 80 square meters.
15b^2 + 20b
Answers
5b(3b+4)
Hope this helps :)
=5b(3b + 4)
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