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Related Concept Videos

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

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Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
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Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
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In uniform circular motion, the particle executing circular motion has a constant speed, and the circle is at a fixed radius. However, not all circular motion occurs at a constant speed. A particle can travel in a circle and speed up or slow down, showing an acceleration in the direction of motion. In that case, the motion is called non-uniform circular motion, and an additional acceleration is introduced, which is in the direction tangential to the circle. 
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Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
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Related Experiment Video

Updated: Mar 28, 2026

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
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Systematic Movements in Haptic Search: Spirals, Zigzags, and Parallel Sweeps.

Valerie S Morash

    IEEE Transactions on Haptics
    |December 20, 2015
    PubMed
    Summary

    Blindfolded participants used systematic search strategies, like spirals, more often with one finger than five. This shows that haptic search behavior adapts to the finger detection radius for optimal exploration.

    Area of Science:

    • * Cognitive Psychology
    • * Human-Computer Interaction
    • * Haptics and Tactile Perception

    Background:

    • * Understanding human movement strategies in tactile exploration is crucial for designing effective interfaces and assistive technologies.
    • * Previous research suggests systematic search patterns, but their modulation by sensory input size is less understood.

    Purpose of the Study:

    • * To investigate how the number of fingers used affects movement strategies during a one-handed haptic search task.
    • * To determine if participants adapt their search behavior based on the detection radius provided by one versus five fingers.

    Main Methods:

    • * Blindfolded sighted participants performed a landmark search on an unstructured tactile map.
    • * Two conditions were tested: using one finger versus five fingers for exploration.

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  • * Movement strategies (e.g., systematic vs. random) were analyzed based on the number of fingers employed.

    • Main Results:

    • * Systematic search strategies (spirals, zigzags, parallel sweeps) were significantly more prevalent in the one-finger condition compared to the five-finger condition.
    • * Participants utilized the larger detection radius with five fingers to find targets more broadly, employing more systematic patterns with a single finger.
    • * During five-finger search, fingers moved cohesively, expanding and contracting to adapt search speed, with primary examination by the index and middle fingers.

    Conclusions:

    • * Untrained sighted individuals naturally adopt optimal, systematic strategies during haptic search.
    • * Haptic search behavior is effectively modulated by the available detection radius, demonstrating adaptive exploration.
    • * The findings provide insights into the sensorimotor control of tactile exploration and its strategic adaptation.