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    Dynamics Worksheet

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    girma worku
    1. The document contains 9 mechanics problems involving dynamics concepts like kinematics, forces, springs, collisions. The problems provide information like masses, velocities, distances, spring constants, coefficients of friction/restitution and ask to calculate values like accelerations, speeds, forces, displacements. 2. Common concepts assessed include motion with constant acceleration, forces in pulley systems, translational and rotational kinematics, work and energy with springs, and elastic collisions. 3. The problems provide context for mechanical engineering students to practice applying dynamics principles to analyze physical systems and calculate unknown values.

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    © All Rights Reserved
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    Dynamics Worksheet

    Uploaded by

    girma worku
    54 views3 pages
    1. The document contains 9 mechanics problems involving dynamics concepts like kinematics, forces, springs, collisions. The problems provide information like masses, velocities, distances, spring constants, coefficients of friction/restitution and ask to calculate values like accelerations, speeds, forces, displacements. 2. Common concepts assessed include motion with constant acceleration, forces in pulley systems, translational and rotational kinematics, work and energy with springs, and elastic collisions. 3. The problems provide context for mechanical engineering students to practice applying dynamics principles to analyze physical systems and calculate unknown values.

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    1. The document contains 9 mechanics problems involving dynamics concepts like kinematics, forces, springs, collisions. The problems provide information like masses, velocities, distances, spring constants, coefficients of friction/restitution and ask to calculate values like accelerations, speeds, forces, displacements. 2. Common concepts assessed include motion with constant acceleration, forces in pulley systems, translational and rotational kinematics, work and energy with springs, and elastic collisions. 3. The problems provide context for mechanical engineering students to practice applying dynamics principles to analyze physical systems and calculate unknown values.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    54 views3 pages

    Dynamics Worksheet

    Uploaded by

    girma worku
    1. The document contains 9 mechanics problems involving dynamics concepts like kinematics, forces, springs, collisions. The problems provide information like masses, velocities, distances, spring constants, coefficients of friction/restitution and ask to calculate values like accelerations, speeds, forces, displacements. 2. Common concepts assessed include motion with constant acceleration, forces in pulley systems, translational and rotational kinematics, work and energy with springs, and elastic collisions. 3. The problems provide context for mechanical engineering students to practice applying dynamics principles to analyze physical systems and calculate unknown values.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 3

    Mizan Tepi University

    College of Engineering and Technology


    Mechanical Engineering Department
    Dynamics work sheet
    1. If the truck comes to stop from an initial forwardspeed of 70 km/h in a
    distance of 50 m with uniform deceleration,determine whether or not the
    crate strikes the wall at the forwardend of the flat bed. If the crate does
    strike the wall, calculate its speed relative to the truck as the impact occurs.
    Use the frictioncoefficients μs= 0.3 and μk= 0.25.

    2. Determine the accellleration of bodies A nd B and the tension in the cable due to
    the application of 300 N force. Neglect all frictions and the masses of pulleys.

    2. The sliders A and B are connected by a lightrigid bar and move with
    negligible friction in theslots, both of which lie in a horizontal plane.For the
    position shown, the velocity of A is0.4 m/s to the right. Determine the
    accelerationof each slider and the force in the barat this instant.

    1
    Page
    Mizan Tepi University
    College of Engineering and Technology
    Mechanical Engineering Department
    Dynamics work sheet
    4. With the blocks initially at rest, the force P is increased slowly from zero to
    260 N. Plot the accelerations of both masses as functions of P.

    5. The 4-kg slider is released from rest at A and slides with a neglible friction
    down the circular rod in the vertical plane. Detrmine a) velocity v of the slider
    as it reaches the bottom at B and b) the maximum deformation x of the spring.

    6. The 6 kg slider is released from rest at point A and slides with neglible
    friction in vertical plane along circular rod. The attached spring has a stiffiness
    of 20 kN/m and has unstretched length of 24 cm. Determine the velocity of the
    slider as it passes position B
    .
    2
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    Mizan Tepi University
    College of Engineering and Technology
    Mechanical Engineering Department
    Dynamics work sheet
    7. Blocks A and B have masses mA and mB respectively. They are placed
    on a smooth surface and the spring connected between them is stretched
    a distance d. If they are released from rest, determine the speeds of both
    blocks the instant the spring becomes unstretched.

    mA = 40 kg d=2m
    mB = 60 kg k =180N/m

    8. The box B of weights WB=5 kg is dropped from rest a distance d=5m


    from the top of the plate P of weight WP=10kg, which is supported by
    the spring having a stiffness k=30 N/m. Determine the maximum
    compression imparted to the spring. (Neglect the mass of the spring and
    use e=0.6).

    9. The “stone” A used in the sport of curling slides over the ice track and
    strikes another “stone” B as shown. If each “stone” is smooth and has
    weight W= 2kg, and the coefficient of restitution between the “stones”
    is, e=0.8, determine their speeds just after collision. Initially A has
    velocity VAl=18 m/s with = 300 while B is at rest.( Neglect friction).

    3
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