Conceptual Phy. Sci. - With Access (Custom)
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Chapter 12, Problem 8RAT
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A block of mass m = 2.50 kg situated on an incline at an angle of
k=100 N/m
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50.0° is connected to a spring of negligible mass having a spring constant of 100 N/m (Fig. P8.54). The pulley and incline are frictionless. The block is released from rest with the spring initially unstretched.
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m
i
(a) How far does it move down the frictionless incline before coming to rest?
m
(b) What is its acceleration at its lowest point?
Magnitude
m/s²
Direction
O up the incline
down the incline
(a) A 15.0 kg block is released from rest at point A in the figure below. The track is frictionless except for the portion between points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2,100 N/m, and compresses the spring 0.250 m
from its equilibrium position before coming to rest momentarily. Determine the coefficient of kinetic friction between the block and the rough surface between points B and C.
-A
3.00 m
B
C
-6.00 m
i
(b) What If? The spring now expands, forcing the block back to the left. Does the block reach point B?
Yes
No
If the block does reach point B, how far up the curved portion of the track does it reach, and if it does not, how far short of point B does the block come to a stop? (Enter your answer in m.)
m
A ball of mass m = 1.95 kg is released from rest at a height h = 57.0 cm above a light vertical spring of force constant k as in Figure [a] shown below. The ball strikes the top of the spring and compresses it a distance d = 7.80 cm as in Figure [b] shown below. Neglecting any energy losses
during the collision, find the following.
т
m
a
d
T
m
b
i
(a) Find the speed of the ball just as it touches the spring.
3.34
m/s
(b) Find the force constant of the spring.
Your response differs from the correct answer by more than 10%. Double check your calculations. kN/m
Chapter 12 Solutions
Conceptual Phy. Sci. - With Access (Custom)
Ch. 12 - Prob. 1RCQCh. 12 - Prob. 2RCQCh. 12 - Prob. 3RCQCh. 12 - Prob. 4RCQCh. 12 - Prob. 5RCQCh. 12 - Prob. 6RCQCh. 12 - Prob. 7RCQCh. 12 - Prob. 8RCQCh. 12 - Prob. 9RCQCh. 12 - Prob. 10RCQ
Ch. 12 - Prob. 11RCQCh. 12 - Prob. 12RCQCh. 12 - If a baseball were the size of Earth, about how...Ch. 12 - Prob. 14RCQCh. 12 - Prob. 15RCQCh. 12 - Prob. 16RCQCh. 12 - Prob. 17RCQCh. 12 - Prob. 18RCQCh. 12 - Prob. 19RCQCh. 12 - Prob. 20RCQCh. 12 - Prob. 21RCQCh. 12 - Prob. 22RCQCh. 12 - Prob. 23RCQCh. 12 - Prob. 24RCQCh. 12 - Prob. 25RCQCh. 12 - Prob. 26RCQCh. 12 - Prob. 27RCQCh. 12 - Prob. 31TASCh. 12 - Prob. 32TASCh. 12 - Prob. 33TASCh. 12 - Rank the following three subatomic particles in...Ch. 12 - Prob. 35TARCh. 12 - Consider three 1-gram samples of matter: A,...Ch. 12 - Prob. 37TARCh. 12 - Prob. 38TARCh. 12 - Prob. 39ECh. 12 - If all the molecules of a body remained part of...Ch. 12 - Prob. 41ECh. 12 - Prob. 42ECh. 12 - Prob. 43ECh. 12 - In what sense can you truthfully say that you are...Ch. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - The nucleus of an electrically neutral iron atom...Ch. 12 - Prob. 52ECh. 12 - Prob. 53ECh. 12 - Prob. 54ECh. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - Prob. 57ECh. 12 - Which is heavier: a water molecule, H2O, or a...Ch. 12 - When we breathe we inhale oxygen, O2, and exhale...Ch. 12 - Prob. 60ECh. 12 - Prob. 61ECh. 12 - Prob. 62ECh. 12 - Prob. 63ECh. 12 - Prob. 64ECh. 12 - Prob. 65ECh. 12 - Prob. 66ECh. 12 - Prob. 74ECh. 12 - Prob. 75ECh. 12 - Prob. 76ECh. 12 - Prob. 77ECh. 12 - Prob. 78ECh. 12 - Prob. 79ECh. 12 - Prob. 80ECh. 12 - Prob. 81ECh. 12 - Prob. 82ECh. 12 - Prob. 83ECh. 12 - Prob. 84ECh. 12 - Prob. 85ECh. 12 - Prob. 86ECh. 12 - Prob. 87DQCh. 12 - Prob. 88DQCh. 12 - In 2011, China was the leading producer of...Ch. 12 - Prob. 90DQCh. 12 - Prob. 1RATCh. 12 - Prob. 2RATCh. 12 - Prob. 3RATCh. 12 - Prob. 4RATCh. 12 - Prob. 5RATCh. 12 - Prob. 6RATCh. 12 - Prob. 7RATCh. 12 - Prob. 8RATCh. 12 - Prob. 9RATCh. 12 - Prob. 10RAT
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