3 years ago

I am in plato cuzz wauup what u doing

1 answer:

8 0

Yoohoo dudio!!! whatz up??!!

MARK AS THE BRAINLIEST SWEETY!!

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krok68 [10]

Yes there is.

Momentum of an object is (its mass) times (its speed) .

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2 years ago

Alchen [17]

C. Eastward. Acceleration is the change in speed so it can be a positive (speeding up) or negative (slowing down) acceleration

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1 year ago

puteri [66]

first is gamma Ray's, last is d

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2 years ago

pishuonlain [190]

Answer:

$a_{avg}=-1.5i+0.5k$

$1.58113883008\ m/s^2$

$-18.43^{\circ}\ or\ 161.57^{\circ}$

Explanation:

u = 4.0i−2.0j+3.0k v = −2.0i−2.0j+5.0k

Average acceleration is given by

$a=\dfrac{v-u}{t}\\\Rightarrow a=\dfrac{-2-4, -2+2, 5-3}{4}\\\Rightarrow a=-1.5i-0j+0.5k$

$a_{avg}=-1.5i+0.5k$

The magnitude is

$a_{avg}=\sqrt{(-1.5)^2+0.5^2}\\\Rightarrow a_{avg}=1.58113883008\ m/s^2$

The magnitude is $1.58113883008\ m/s^2$

The angle is

$\theta=tan^{-1}\dfrac{a_z}{a_x}\\\Rightarrow \theta=tan^{-1}\dfrac{0.5}{-1.5}\\\Rightarrow \theta=-18.43^{\circ}\ or\ 161.57^{\circ}$

The angle between $a_{avg}$ and the positive direction of the x axis is $-18.43^{\circ}\ or\ 161.57^{\circ}$

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2 years ago

Juli2301 [7.4K]

Answer:

Explanation:

In this process on merry go round there is not any external torque so angular momentum will be conserve. Mass is always conserved.

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2 years ago