an-object-moves-at-constant-speed-in-a-circular-path-which-of-the-following-statements-is-true-selec

Question

An object moves at constant speed in a circular path. Which of the following statements is true? Select two answers. 
(A) The velocity is changing.
(B) The velocity is constant.
(C) The magnitude of acceleration is constant.
(D) The magnitude of acceleration is changing.

Khoobchandra Agrawal · Accepted Answer

Hi, everyone. If a particle is moving and uniform Circular motion Mhm again, velocity is non uniform. Magnitudes constant. What direction keeps on mhm changing acceleration, having constant magnitude. What direction keeps on changing? Mhm. So answer is correct. That&#x27;s thanks for what?

Ze-Han Lee · Answer

So for this problem, we see that, uh, the objects moving with constant speed. The travels went around the secular path. So we see that because it&#x27;s traveling once around because it&#x27;s just a company circle. Right? So displacement here is from the same place and ended at the same place. So the displacement is zero x zero. That&#x27;s right. And the average speed is actually not zero. Because you can see that at any moment it is moving. So the average speed is not zero. Uh huh. And for Parsi, for the for the choice. See, acceleration is not zero because we have the, uh, contributor force. Right? So it is pointing, pointing to this pointing to the center so the acceleration is not zero. And for party, the velocity is changing. That is right, because the although the magnitude of the velocity is not changing, but the direction of the velocity is changing. So we is changing. Uh, that&#x27;s right. So a and D d there. Right. Okay,

Salamat Ali · Answer

object moving in. The uniforms are full of emotion. Suppose there were lost. He changes with speed. Amanda Constant and the acceleration is a directed towards the center, therefore Ocean B and the other right.

Ze-Han Lee · Answer

right. So, uh, for this problem, we have objects. We have optic moving on the uniform psychopath. So we want to determine the which statement is right for their statement. A say start to the centrifugal centrifugal forces. The action reaction force off this intruder falls. So this is actually all right because there is no such a fools. Ah, as ah as no one has sent the ah, the centrifugal force. The centrifugal forces actually like, ah, virtual force. It&#x27;s ah is a student force. Okay, so it does not. It does not really exist in the in the nature. So we can know, say that this is an action reaction here, off this and off the Central Air Force. And so is it all right and be stays that Ah ah, the centripetal acceleration velocity point in the same direction. So there&#x27;s no right because in the circle path the direction of the generations pointing to the center however, the direction of the velocities pointing into supposes party, party novel, it&#x27;s pointing along potential direction, so they do not form the same direction. So he&#x27;s not right and say say is that, uh the velocity of the object emotion changes were as the acceleration of the objects concept. So this is also incorrect because at different points way always need to make sure that x generation pointing to the center. All right, so s so as you&#x27;re going to check out this two points point A and point B, they have different direction off the acceleration. Right? So see, it&#x27;s not right. So the only correct choices D ah. So the reason why this ah, choice. He&#x27;s right. Is that Ah ah. So a satellite undergoing our uniform circular motion is actually 14 falling toward the center. The reason why it is, uh, it is moving along. Potential direction is because, ah, the velocity is a long tradition direction, right? So the velocity changes as a result, but ah, it will always form attendant Tangent. Two is a psychopath.

Ze-Han Lee · Answer

All right, so in this problem, the object is moving in the second path and the complete A full cycle. Okay, so we have four statements. The 1st 1 says that the displacement is zero at the conclusion of its motion. So this is the right, because if the objects start here and in here so equivalent to say that displacement is here. Okay? AIDS right. And be say&#x27;s that. Sorry. The second statement says that to the average speed is zero at the conclusion of this motion. So this is incorrect because average speed at any moment is a constant and ever just be here equal V equal to pi r. Do you realize the purity? Okay, so it&#x27;s not zero. So be is incorrect. And the 3rd 1 says that the velocity changes doing this motion. So this is a cracked. Although the magnitude of the velocity is constant, but the direction of the velocity is changing, right? So at any moment, the direction of the velocity is different. So sees right as are certainly see. Ah, what I May ABC here. So is the first. The statement bees The second statement and seized 1/3 statement. Yeah, and the not statements is that Ah, on acceleration zero dearest motion, it&#x27;s Ah, it&#x27;s incorrect. Biggest X generation at any moment is pointing into the center, so this way is incorrect. So only only the 1st 1/3 way&#x27;s rights, okay?

Manish Kumar · Answer

object is moving in a circle Muslim. We know that it is, you know, obviously moving around the center on. That is why it is called circular motion. So yeah, the condition is a speed constant. So we know that encircled Mosul at each and every point that there is change in the direction off Mosul&#x27;s. Obviously that there is there will be changed in the direction. So obviously velocities affected quantity, So yeah, all the point the velocity will not seen. So yeah, the answer would off. The first part is no, a big no, because each and every point that will be changed direction off motion. So the velocity changes because the velocity has both and bankrupt company magnitude and tracks. And so yeah, speed is constant because as long as magnitude is considered so the speed, it&#x27;s same but velocities, obviously not the constant and again exploration is also not constant because at each and every point, exploration get changed. So, yeah, acceleration, mhm race. And it also not constant because you know that there is the centripetal acceleration over there, so and each and every point, then the reaction of centripetal excellent and good changes. Okay,

Problem

At the lowest point in its path, the tension in t…

Problem 1 Easy Difficulty

An object moves at constant speed in a circular path. Which of the following statements is true? Select two answers.
(A) The velocity is changing.
(B) The velocity is constant.
(C) The magnitude of acceleration is constant.
(D) The magnitude of acceleration is changing.

Answer

Related Courses

Cracking The AP Physics 1 Exam

Related Topics

Discussion

Top Physics 101 Mechanics Educators

Elyse G.

Andy C.

Jared E.

Meghan M.

Physics 101 Mechanics Courses

Math Review - Intro

Algebra - Example 1

Recommended Videos

Watch More Solved Questions in Chapter 7

Video Transcript

Robert Franek

Cracking The AP Physics 1 Exam

Elyse G.

Andy C.

Jared E.

Meghan M.

Math Review - Intro

Algebra - Example 1

What do you need help with?

Textbooks

Ask a question

Courses

AI Tutor

Cracking The AP Physics 1 Exam

Elyse G.

Andy C.

Jared E.

Meghan M.

Math Review - Intro

Algebra - Example 1

Robert FranekCracking The AP Physics 1 Exam

Elyse G.

Andy C.

Jared E.

Meghan M.

Robert Franek

Cracking The AP Physics 1 Exam