Q- describe the direction, speed, and acceleration of an object moving with uniform circular motion. a- an object moving in a circle still wants to move in a straight line. this straight-line motion is always at a tangent to the circle, so the speed of an object moving in a circle is known as tangential speed. in uniform circular motion, the speed remains constant while the direction of the object changes. this means the object experiences an acceleration toward the center of the circle, which is known as centripetal acceleration.

An object moving in a circle wants to move in a straight line.

The motion of an object is tangent to the circle.

Tangential speed remains constant for an object with uniform circular motion.

Only the direction of the object changes, which means velocity is changing and the object is accelerating

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

b.

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