Physics, 30.03.2020 23:14 cupcakesmc619

Ou whirl a stone in a horizontal circle in such a way that the stone is in uniform circular motion. Which of the following is true for this situation? (Select all that apply.) The magnitude of the stone's velocity does not change. The direction of the stone's velocity changes as it moves around the circle. The stone's speed is constant. The change in direction of the stone's motion is due to the centripetal force acting on the stone. The stone is moving with constant velocity. Incorrect: Your answer is incorrect.

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Answer from: ravenmcfarlandp07okx

The magnitude of the stone's velocity does not change.

The direction of the stone's velocity changes as it moves around the circle.

The stone's speed is constant.

The change in direction of the stone's motion is due to the centripetal force acting on the stone.

The uniform motion of the stone around circular curve is directed inwards due to the centripetal force acting on the stone, keeping the stone moving in the circular path without falling off.

$F = ma_c\\\\F = \frac{mv^2}{r}$

where;

is the centripetal acceleration v is the velocity of the stoner is the radius of the circular path

From the formula given above we can conclude that;

The magnitude of the stone's velocity does not changeThe direction of the stone's velocity changes as it moves around the circle.The stone's speed is constant.The change in direction of the stone's motion is due to the centripetal force acting on the stone.

Learn more about circular motion here: link

Answer from: obalzano6817

The magnitude of the stone's velocity does not change.

The direction of the stone's velocity changes as it moves around the circle.

The stone's speed is constant.

The change in direction of the stone's motion is due to the centripetal force acting on the stone.

Explanation:

When a stone moves along a circular path, the magnitude of its velocity remains the same but the direction of this velocity changes. The direction of the velocity at any point is the tangent to the circular path at that point. The speed of the stone at any point along the circular path is constant since speed is a scalar quantity.

Centripetal force is the force that keeps the stone moving along its circular path.

The velocity of this stone changes even though the magnitude of velocity does not change. The velocity is said to change because its direction changes.

Answer from: Quest

it is because acrylic blanket have acrylic textile fiber

explanation:

its is better than wool blanket

Answer from: Quest

the answer is b, have negligible mass

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