19-45. The 10-lb block is sliding on the smooth surfacewhen the corner D hits a stop block S. Determine theminimum velocity v the block should have which wouldallow it to tip over on its side and land in the positionshown. Neglect the size of S. Hint: During impact considerthe weight of the block to be nonimpulsive.BEftSHD

Solution 1: Given data: Weight of block = 10 lb Draw the free body diagram of the block.

Answered: 19-45. The 10-lb block is sliding on…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The spring is placed between the wall and the 10-kg block. If the block is subjected to aforce of F = 500 N, determine its velocity when s = 0.5 m. When s = 0, the block is at restand the spring is uncompressed. The contact surface is smooth.
15-78. Two smooth disks A and B each have a mass of 0.5 kg. If both disks are moving with the velocities shown when they collide. determine the coefficient of restitution between the disks if after collision B travels along a line, 30° counterclockwise from the y axis.
14-67. The assembly consists of two blocks A and B which have a mass of 20 kg and 30 kg, respectively. Determine the speed of each block when B descends 1.5 m. TI1c blocks are released from rest. Neglect the mass of the pulleys and cords
5. The 25-kg block AA is released from rest.
the particle has a mass of 0.5 kg and is confined to move along the smooth horizontal slot due tot he rotation of the arm OA. Determine the force of the rod on the particle and the normal force of the slot on the particle when theta= 30°. The rod is rotating with a constant angular velocity thetadot = 2 rad/s. assume the particle contact only one side of the slot at any instant
P13-2. The 10-kg block is subjected to the forces shown.In each case, determine its velocity at s=8m if v=3m/sat s=0. Motion occurs to the right.
14-76. The 4-kg smooth collar has a speed of 3 m/ s when it is at s = 0. Determine the maximum distance s it travels before it stops momentarily. The spring has an unstretched length of l m
The smooth particle has a mass of 80 g. It is attached to an elastic cord extending from O to P and due to the slotted arm guide moves along the horizontal circular path r=(0.8sinθ)m. If the cord has a stiffness k= 24 N/m and an unstretched length of 0.25 m, determine the force of the guide on the particle when θ=60. The guide has a constant angular velocity θ˙=5rad/s
The 250-lb concrete block A is released from rest in the position shown and pulls the 400-lb log up the 30o ramp. If the coefficient of kinetic friction between the log and the ramp is 0.5, determine thevelocity of the block as it hits the ground at B.
19-26 The double pulley consists of two wheels which are attached to one another and turn at the same rate. The pulley has a mass of 15 kg and a radius of gyration of = 110 mm. if the block at A has a mass of 40 kg and the container at B has a mass of 85 kg, including its contents, determine the speed of the container when t = 3s after it is released from rest.
14-59 The material hoist and the load have a total mass of 800 kg and the counterweight C has a mass of 150 kg. At a given instant, the hoist has an upward velocity of 2 m/s and an acceleration of 1.5 m/s2. Determine the power generated by the motor M at this instant if it operated with an efficiency of 0.8
17-35. The sports car has a mass of 1.5 Mg and a center of mass at G. Determine the shortest time it takes for it to reach a speed of 80 km/h, starting from rest, if the engine only drives the rear wheels, whereas the front wheels are free rolling. The coefficient of static friction between the wheels and the road is u, = 0.2. Neglect the mass of the wheels for the calculation. If driving power could be supplied to all four wheels, what would be the shortest time for the car to reach a speed of 80 km/h? G 0.35 m A -1.25 m-- -0.75 m

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