EP ENGR.MECH.:DYNAMICS-REV.MOD.MAS.ACC.
14th Edition
ISBN: 9780133976588
Author: HIBBELER
Publisher: PEARSON CO
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Chapter 12.10, Problem 208P
The motor draws in the cable at D with a constant acceleration of aD = 8 m/s2. If vD = 0 when t = 0, determine (a) the time needed for block A to rise 3 m, and (b) the relative velocity of block A with respect to block B when this occurs.
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H.W 5.4
Calculate the load that will make point A move to the left by 6mm, E-228GPa. The diameters
of the rods are as shown in fig. below.
2P-
PA
50mm
B
200mm
2P
0.9m
1.3m
d₁
=
=
Two solid cylindrical road AB and
BC are welded together at B and
loaded as shown. Knowing that
30mm (for AB) and d₂
50mm (for BC), find the average
normal stress in each road and the
total deformation of road AB and
BC. E=220GPa
H.W 5.3
60kN
A
For the previous example calculate the
value of force P so that the point A will not
move, and what is the total length of road
AB at that force?
P◄
A
125kN
125kN
0.9m
125kN
125kN
0.9m
B
B
1.3m
1.3m
Class:
B
Calculate the load that will make point A move to the left by 6mm, E-228GPa
The cross sections of the rods are as shown in fig. below.
183
P-
Solution
1.418mm
200mm
80mm
3P-
18.3
A
080mm
B
200mm
3P-
0.9m
إعدادات العرض
1.3m
4.061mm
Chapter 12 Solutions
EP ENGR.MECH.:DYNAMICS-REV.MOD.MAS.ACC.
Ch. 12.2 - a. If s = (2t3) m, where t is in seconds,...Ch. 12.2 - Initially, the car travels along a straight road...Ch. 12.2 - Determine the time of flight when it returns to...Ch. 12.2 - A particle travels along a straight line with a...Ch. 12.2 - A particle travels along a straight line with a...Ch. 12.2 - Determine the time when the velocity of the...Ch. 12.2 - A particle travels along a straight line with an...Ch. 12.2 - A particle moves along a straight line such that...Ch. 12.2 - Determine the acceleration of the particle at s =...Ch. 12.2 - What is the particles velocity when t = 6 s, and...
Ch. 12.2 - If a particle has an initial velocity of v0 = 12...Ch. 12.2 - When t = 1 s, the particle is located 10m to the...Ch. 12.2 - When s =4ft, v = 3ft/s and when s = 10ft, v = 8...Ch. 12.2 - If s = 0 when t = 0, determine the particles...Ch. 12.2 - Determine the position of the particle when t = 6...Ch. 12.2 - Determine the average velocity, the average speed,...Ch. 12.2 - Determine (a) the displacement of the particle...Ch. 12.2 - If s = 1 m and v = 2 m/s when t = 0, determine the...Ch. 12.2 - Determine the particles velocity when s = 2 m, if...Ch. 12.2 - Then in another 5 s it moves from SB to SC = 6 m....Ch. 12.2 - How long will it take to reach a speed of 120...Ch. 12.2 - It takes about 3 s for a driver having 0.1%...Ch. 12.2 - Determine the total distance traveled when t = 10...Ch. 12.2 - If it is subjected to a deceleration of a = kv3,...Ch. 12.2 - Determine how far it travels before it stops. 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When t...Ch. 12.3 - If the rocket starts at s = 0 when v = 0,...Ch. 12.3 - After 30 s the first stage, A, burns out and the...Ch. 12.3 - The flat part of the graph is caused by shifting...Ch. 12.3 - Determine the cars maximum velocity and the time t...Ch. 12.3 - Draw the v-s graph and determine the time needed...Ch. 12.3 - From the data, construct the s-t and a-t graphs...Ch. 12.3 - Determine the total distance the motorcycle...Ch. 12.3 - Determine the motorcycles acceleration and...Ch. 12.3 - Draw the s-t and a-t graphs. Also determine the...Ch. 12.3 - If it is subjected to the decelerations shown,...Ch. 12.3 - Determine the boats speed when s = 50 ft, 100 ft,...Ch. 12.3 - Construct the v-s graph.Ch. 12.3 - After 15 s the first stage A burns out and the...Ch. 12.3 - The speed of a train during the first minute has...Ch. 12.3 - If the elevator maintains a constant upward speed...Ch. 12.3 - Car A accelerates at 4 m/s2 for 10 s and then...Ch. 12.3 - If the position of a particle is defined as s =...Ch. 12.3 - Construct the st and at graphs for the motion....Ch. 12.3 - Draw the vs graph if v = 0 at s = 0.Ch. 12.3 - Determine the speed of the plane when it has...Ch. 12.3 - Construct the s-t and a-s graphs. Also, determine...Ch. 12.3 - Construct the a-s graph.Ch. 12.3 - Determine its acceleration when s = 100 m and when...Ch. 12.6 - Use the chain-rule and find and in terms of x, ...Ch. 12.6 - The particle travels from A to B. Identify the...Ch. 12.6 - The particle travels from A to B. 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such that its position as a function of time is...Ch. 12.8 - Determine the radial and transverse components of...Ch. 12.8 - Determine the magnitudes of the velocity and...Ch. 12.8 - Determine the velocity and acceleration of the...Ch. 12.8 - Determine the radial and transverse components of...Ch. 12.8 - If it is assumed that the hose lies in a...Ch. 12.8 - Two pin-connected slider blocks, located at B....Ch. 12.8 - Determine the magnitude of the acceleration of the...Ch. 12.8 - If the geometry of the fixed rod for a short...Ch. 12.8 - The platform rotates at a constant rate of 6...Ch. 12.8 - Determine the cars radial and transverse...Ch. 12.8 - Determine the cars radial and transverse...Ch. 12.8 - If it maintains a constant speed of v = 35 ft/s,...Ch. 12.8 - Determine the cylindrical components of the...Ch. 12.8 - Determine the maximum and minimum magnitudes of...Ch. 12.8 - The peg is constrained to move in the slots of the...Ch. 12.8 - When = 30, the angular velocity and angular...Ch. 12.8 - Determine the angular rate of rotation of the...Ch. 12.8 - A truck is traveling along the horizontal circular...Ch. 12.8 - Two pin-connected slider blocks, located at B,...Ch. 12.8 - Determine the magnitude of the acceleration of the...Ch. 12.8 - The searchlight on the boat anchored 2000 ft from...Ch. 12.8 - If the car in Prob.12-187 is accelerating at 15...Ch. 12.8 - If = 4 rad/s (constant), determine the radial and...Ch. 12.8 - if the particle has an angular acceleration = 5...Ch. 12.8 - If = (0.5t)rad, where t is in seconds, determine...Ch. 12.8 - Determine the magnitudes of the velocity and...Ch. 12.8 - When t = 0, = 0. 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Determine the...Ch. 12.10 - If block B is moving down with a velocity vB and...Ch. 12.10 - Determine the velocity and acceleration of the...Ch. 12.10 - If their velocities are vA = 500km/h and vB =...Ch. 12.10 - If B is increasing its speed by 1200mi/h2, while A...Ch. 12.10 - The point of destination is located along the...Ch. 12.10 - If vA = 40ft/s and vB = 30 ft/s. determine the...Ch. 12.10 - An instrument in the car indicates that the wind...Ch. 12.10 - If vA = 10m/s and vB = 15m/s, determine the...Ch. 12.10 - At the same instant, car B is decelerating at 250...Ch. 12.10 - At the instant shown, A has a speed of 90ft/sand...Ch. 12.10 - If raindrops fall vertically at 7 km/h in still...Ch. 12.10 - If B is increasing its velocity by 2 m/s2, while A...Ch. 12.10 - If A is increasing its speed at 4 m/s2, whereas...Ch. 12.10 - Compute the terminal (constant) velocity vr of the...Ch. 12.10 - He wishes to cross the 40-ft-wide river to point...Ch. 12.10 - Determine the magnitude and direction of the...Ch. 12.10 - At the instant the ball is thrown, the player is...Ch. 12.10 - At the instant the ball is thrown, the player is...Ch. 12.10 - Determine the constant speed at which the player...Ch. 12.10 - At this same instant car B travels along the...Ch. 12.10 - If you measured the time it takes for the...Ch. 12.10 - Determine its maximum acceleration and maximum...Ch. 12.10 - Originally s0 = 0.Ch. 12.10 - A projectile, initially at the origin, moves along...Ch. 12.10 - Determine the acceleration when t = 2.5 s, 10 s,...Ch. 12.10 - If it takes 3 s to go from A to B, and then 5 s to...Ch. 12.10 - From a videotape, it was observed that a player...Ch. 12.10 - The truck travels in a circular path having a...Ch. 12.10 - If the car starts from rest when = 0, determine...Ch. 12.10 - Determine the magnitude of the particles...Ch. 12.10 - Determine the time needed for the load at B to...Ch. 12.10 - If their velocities are vA = 600 km/h and vB = 500...
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