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If a truck carrying a crate on its bed brakes hard enough that the crate slides to the right relative to the truck the distance d between the crate and the front of the trailer changes according to the relationd = ukg + aT for t<tsd = ukg for t >tswhere ts is the time it takes the truck to stop, aT is the acceleration of the truck, g is the acceleration of gravity and uk is the kinectic friction coefficient between the truck and the crate. suppose that the truck and the crate are initially travelling to the right at v0 = 60 mph and the brakes are applied so that aT = -10ft/s^2 . Determine the minimum value of uk so that the crate does not hi the right end of the truck bed if the initial distance d is 12 feet.
a manometer is connected to a water pipe to measure the pressure at the center of the pipe. the manometer is
determine diameter of a circular rod of ductile material with a fatigue strength ,e=280 Mpa. Add a tensile yield strength of 350 Mpa. The member is subjected to a varying axial load from 700 kN to -300kN. Assume Kt=1.8 and factor of safety=2.
the 4-mm-diameter cable bc is made of a steel with e 200 gpa. knowing that the maximum stress in the cable must not
determine what kind of drive is best and to select suitable components .the driven equipment requires 60hp and should
strarting from x 0 with no initial velocity a particle is given an acceleration a 0.1 squere root v216 where a
mass 8kg stiffness 90nm initial displacement 0.1m initial velocity 0.9ms assume the system is critical damped. find the
vector a has components ax 1.24 ay 2.21 vector b has components bx 4.06 b-y -3.66. find the counterclockwise angle
a driver of a car is repeatedy driving around a roundabout with a diameter of 100feet . the driver is traveling around
Knowing that in the position shown the rod has angular velocity of 4 rad/s clockwise; determine the angular velocity of the rod after it has rotated through a 90°.
determine the velocity of ship in sea water and also the resistance in sea water if density of air 1.3 kg/m and kinematic viscosity of sea water and air as 0.012 and 0.018 stokes respectively.
the motor of a speed boat is shut off when it has attained a speed of v0. now the boat is slowed down by a retarding
you are designing an ex vivo artificial organ. the cells in the organ cannot tolerate shear stress in excess of 0.5 gcm
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