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Juli2301 [7.4K]
3 years ago
13

An object is moving in a straight line along the y axis. As a function of time, its position is given by the equation y=3.0+4.8x

+6.4x ,What is the velocity of the object as a function of time?
What is the acceleration of the object as a function of time?
Physics
1 answer:
romanna [79]3 years ago
5 0

Answer:

Explanation:

<u>Instant Velocity and Acceleration </u>

Give the position of an object as a function of time y(x), the instant velocity can be obtained by

v(x)=y'(x)

Where y'(x) is the first derivative of y respect to time x. The instant acceleration is given by

a(x)=v'(x)=y''(x)

We are given the function for y

y(x)=3.0+4.8x +6.4x^2

Note we have changed the last term to be quadratic, so the question has more sense.

The velocity is

v(x)=y'(x)=4.8+12.8x

And the acceleration is a(x)=v'(x)=12.8

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Distance between Car A and B at t=0 = 41 Km

a) Distance travel by car B

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26.41 t + 41000 = 33.64 x t

7.23 t = 41000

t = 5670.82 s

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distance traveled by car A

D = s x t  = 26.41 x 5670.82 = 149766.25 m = 149.76 Km

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A box with sides of length 40 cm is made up of six pieces of concrete of thickness 5 mm. The inside of the box is filled with 10
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