A coin is rolling on its side across the floor. Which one of the following state

Question

A coin is rolling on its side across the floor. Which one of the following statements concerning this situation is true? a) The tangential velocity is the same for all points on the side of the coin. b) There is no slipping at the point where the coin touches the floor. c) The angular acceleration of the coin must be zero m/s^2. d) The tangential velocity is the same for all points on the coin. e) The linear velocity for all points on the coin is non-zero. Consider the following kinds of energy: (1) translational, (2) rotational, (3) elastic potential energy, and (4) gravitational potential energy. Which of these kinds of energy are involved when a wheel rolls without slipping along a flat, horizontal surface? a) 1, 2, 3, and 4 b) 1, 2, and 4 only c) 1 and 2 only d) 1 only e) 2 only The entrance door to a video store is pivoted about the hinges on the left side of the door. When you begin to push on the right side of the door to enter the store, what is the direction of the torque on the door? a) into the store b) out of the store c) upward d) downward e) None of the above Vector A is directed due north. Vector B is directed due east. Determine the direction of the vector product, A times B a) due south b) due west c) vertically downward d) vertically upward e) 45 degree north of east If the magnitude of position vector r and force vector F are r and F respectively, under what conditions does the torque vector tau = r F ? [Trick Question] a) This occurs when the two vectors are perpendicular to one another. b) This occurs when the two vectors have the same magnitude. c) This situation never occurs. d) This occurs when the two vectors are parallel to one another. e) This always occurs, regardless of the particular vectors involved.

Explanation / Answer

tangential speed = the speed at the center of the wheel.

TRUE there is no slipping at the point where the coin touches the floor, because the coin is not skidding it is rotating so the point of contact is always the same with the plane in which it is rotating as well as moving with transverse motion.

angular acceleration is not zero because it is moving with change of velocity with change of time.

no its not same at all point only at the center.

TRUE the Linear velocity at all points will be non zero since the coin is rotating as well as moving linearly

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.