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Anestetic [448]
3 years ago
7

A car is moving with speed 60 m/s and acceleration 4 m/s2 at a given instant. (a) using a second-degree taylor polynomial, estim

ate how far the car moves in the next second. m (b) would it be reasonable to use this polynomial to estimate the distance traveled during the next minute? yes no
Physics
1 answer:
pantera1 [17]3 years ago
6 0

Answer:

Explanation:

Using second degree taylor polynomials

let S(t) be position function and set S(0)=0

where S(0) is the initial position

Then v(t) = S^i(t) and a(t)=S^{ii}(t)

we have v(0) = 60m/s, a(0) = 4m/s^2

so T_{2}(t) =S(0)+v(0)t+\frac{a(0)}{2} t^2\\\\\\=0+60t+\frac{4}{2} t^2\\\\T_{2}(t)=60t+2t^2\\\\S(1)=T_{2}(1)=60+2=62m

b.) yes

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Average acceleration of the baseball: -101 m/s^2

Explanation:

Since the motion of the baseball is a uniformly accelerated motion, we can use the following suvat equation:

v^2-u^2=2as

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a is the acceleration

s is the displacement of the object

For the baseball in this problem, we have:

u = 2.2 m/s is the initial velocity

v = 0 is the final velocity (it comes to a stop)

s = 24 mm = 0.024 m is the displacement of the ball while decelerating

Therefore, we can solve for a to find the acceleration:

a=\frac{v^2-u^2}{2s}=\frac{0-2.2^2}{2(0.024)}=-101 m/s^2

where the negative sign means the baseball is slowing down.

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4 0
3 years ago
Classify the following elements as alkine, alkine-earth, or transition metals based on their position on the periodic table
azamat

Explanation:

Iron                              transition metal

Potassium                   Alkaline metal

Strontium                    Alkaline earth metal

Platinum                      transition metal

The periodic table arranges elements based on their atomic numbers into periods and groups. Atomic number is the number of protons an atom contains.

On the periodic table:

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Group IIA    is the Alkaline earth metals

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 Group IIIB to IIB   Transition elements.

Running a check of the given elements on the periodic table will confirm answer.

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Answer:

The advertisement feature that George can use is a coupon booklet  with the local newspaper for delivery

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1 foot = 30.48 cm

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Parents have a major role in observing how young children grow at home. Create and discuss simple developmental monitoring tips
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