PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Chapter 19, Problem 51P
The solid ball of mass m is dropped with a velocity v1 onto the edge of the rough step. If it rebounds horizontally off the step with a velocity v2, determine the angle θ at which contact occurs. Assume no slipping when the ball strikes the step. The coefficient of restitution 15 e.
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A steel ball with mass m strikes an initially stationary plate of mass 2m with an initial velocity v1 = 24 m/s at an angle θ1 = 60o. If the plate is constrained to move vertically, and the coefficient of restitution for the impact is e = 0.8, compute the magnitude of velocity v2 and the direction θ2 with which the ball rebounds off the plate immediately after the impact.
The
2.8-kg collar is released from rest at A and slides down the inclined fixed rod in the vertical plane. The coefficient of kinetic friction
is 0.62. Calculate (a) the velocity v of the collar as it strikes the spring and (b) the maximum deflection x of the spring.
2.8 kg
0.68 m
H=0.62
59
Answers:
(a) v =
(b) x =
i
i
k = 3.4 kN/m
m/s
mm
The 3.0-kg collar is released from rest at A
and slides down the inclined fixed rod in the
vertical plane. The coefficient of kinetic
friction is 0.38. Calculate (a) the velocity v of
the collar as it strikes the spring and (b) the
maximum deflection x of the spring.
3.0 kg
H=0.38
Answers:
(a) V =
A
(b) x =
56°
HI
0.45 m
k = 3.7 kN/m
m/s
mm
Chapter 19 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
Ch. 19 - The 60-kg wheel has a radius of gyration about its...Ch. 19 - Prob. 2FPCh. 19 - Prob. 3FPCh. 19 - Gears A and B of mass 10 kg and 50 kg have radii...Ch. 19 - The 50-kg spool is subjected to a horizontal force...Ch. 19 - Prob. 6FPCh. 19 - The rigid body (slab) has a mass m and rotates...Ch. 19 - Prob. 2PCh. 19 - Show that if a slab is rotating about a fixed axis...Ch. 19 - Prob. 21P
Ch. 19 - The two gears A and B have weights and radii of...Ch. 19 - The 30-kg gear is subjected to a force of P =...Ch. 19 - Prob. 27PCh. 19 - The turntable T of a record player has a mass of...Ch. 19 - The 10-g bullet having a velocity of 800 m/s is...Ch. 19 - Prob. 31PCh. 19 - Disk A has a weight of 20 lb. An inextensible...Ch. 19 - The 12-kg rod AB is pinned to the 40-kg disk. If...Ch. 19 - A thin rod of mass m has an angular velocity o...Ch. 19 - Prob. 41PCh. 19 - Prob. 42PCh. 19 - Prob. 44PCh. 19 - The 10-lb block is sliding on the smooth surface...Ch. 19 - Prob. 46PCh. 19 - The pendulum consists of a 15-kg solid ball and...Ch. 19 - Prob. 48PCh. 19 - The 20-kg disk strikes the step Without...Ch. 19 - The solid ball of mass m is dropped with a...Ch. 19 - Prob. 54PCh. 19 - Prob. 55PCh. 19 - Prob. 56PCh. 19 - Prob. 58PCh. 19 - The cable is subjected to a force of P = (10t2)...Ch. 19 - Prob. 2RPCh. 19 - The tire has a mass of 9 kg and a rad1us of...Ch. 19 - Prob. 4RPCh. 19 - The spool has a weight of 30 lb and a radius of...Ch. 19 - Prob. 6RPCh. 19 - Prob. 7RPCh. 19 - Prob. 8RP
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- To pass inspection, steel balls designed for use in ball bearings must clear the fixed bar A at the top of their rebound when dropped from rest through the vertical distance H = 36 in. onto the heavy inclined steel plate. If balls which have a coefficient of restitution of less than 0.7 with the rebound plate are to be rejected, determine the position of the bar by specifying h and s. Neglect any friction during impact.arrow_forwardThe 2.5-kg collar is released from rest at A and slides down the inclined foxed rod in the vertical plane. The coefficient of kinetic friction is 0.61. Calculate (a) the velocity v of the collar as it strikes the spring and (b) the maximum deflection of the spring 2.5 kg -0.61 Answers: 65 9- 65 0.62 m k-1.4 kN/m m/arrow_forwardThe small collar of mass m = 0.35 kg is released from rest at A and slides down the curved rod in the vertical plane with negligible friction. If b = 0.82 m, and h = 2.84 m, and if the velocity of the collar as it strikes the base Bis 6.26 m/s after release of the collar from rest at A, calculate the work Q of friction. What happens to the energy which is lost? Answer: Q iarrow_forward
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