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2 years ago

Will mark as BRAINLIEST.......

Physics

2 answers:

Alborosie2 years ago

7 0

This is the written answers to find the velocity and acceleration of r

lubasha [3.4K]2 years ago

6 0

Answer:

We have the position vector given in terms of time t. r(t) = t^3*i + t^2*j

To find the velocity vector we have to differentiate r(t) with respect to time.

r'(t) = 3t^2*i + 2t*j

The vector representing acceleration is the derivative of the position vector

r''(t) = 6t*i + 2*j

When time t = 2.

The velocity vector is 3*2^2*i + 2*2*j

=> 12*i + 4*j

The speed is the absolute value of the velocity vector or sqrt(12^2 + 4^2) = sqrt (144 + 16) = sqrt 160

The acceleration vector is 6*2*i + 2*j

=> 12*i + 2*j

The required acceleration at t=2 is 12*i + 2*j and the speed is sqrt 160.

Explanation:

Can I have thx and brainliest?

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Answer:

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Explanation:

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$V=6.0\times10^{6}\times1.4\times10^{-3}$

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3 years ago

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Vitek1552 [10]

Answer:

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Explanation:

First we should define the variables

T=4

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