PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Question
Chapter 15, Problem 85P
To determine
The coefficient of restitution between the ball and the floor.
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A projectile (mp = 78 g) traveling at v = 570 m/s strikes and becomes embedded in the block (mb = 32 kg), which is initially stationary. Compute the energy lost during the impact. Express your answer as an absolute value |ΔE| and as a percentage n of the original system energy E.
Compute the final velocities v₁' and v₂' after collision of the two cylinders which slide on the smooth horizontal shaft. The velocities are
positive if to the right, negative if to the left. The coefficient of restitution is e=0.77.
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Answers:
V₁' =
V₂¹ =
V1
W₁
i
i
V2
W₂
ft/sec
ft/sec
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Chapter 15 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
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- The two crates are released from rest. Their masses are m-40 kg and m-30 kg and the kinetic coefficient of friction between crate A and the inclined surface is pu-0.15. The angle between the inclined surface and the horizontal is 30" Figure A 30 1 of 1 > 1 ▼ Part A What is the magnitude of the velocity of the crates when they have moved 400 mm? (Eigure 1) Express your answer with the appropriate units. Submit 4 → m S Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedbackarrow_forwardThe masses of A and B blocks are 8.5 kg and 4.25 kg, respectively. These two blocks are connected by a lever and released. Calculate the force on the arm. Take the kinetic friction coefficient between A block and the surface as μA = 0.15 and the kinetic friction coefficient between B block and the surface as μB = 0.4. Neglect the mass of the arm. θ (o) = 38arrow_forwardQ1: Two smooth disks A and B, having mass of 1 kg and 2 kg respectively, collide with the velocities shown. If the coefficient of restitution for the disks is e = 0.75, determine the x and y components of the final velocity of each disk just after collision. (VB) =1 m/s = 45° 8 = 30 Line of impact (VA) = 3 m/s Plane of contactarrow_forward
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