compression curve? A. Acceleration B. Kinetic energy C. Velocity D. Potential en
ID: 2034426 • Letter: C
Question
compression curve?
A. Acceleration
B. Kinetic energy
C. Velocity
D. Potential energy
E. None of the above
2. The mass m below is connected to a spring. The other end of the spring is connected to a stationary wall. The mass can oscillate between points A and E with negligible friction. At what point does the mass experience maximum velocity?
A. A
B. B
C. C
D. D
E. E
3. At what point does the mass have its maximum acceleration?
A. A only
B. B
C. C
D. D
E. A and E
4. At what point does the mass experience maximum force?
A. A only
B. A and E
C. E only
D. B and D
E. C only
5. At what point does the mass have its maximum kinetic energy?
A. A
B. B
C. A and E
D. B and D
E. C
6. At what point does the mass have its maximum potential energy?
A. A and E
B. B
C. C
D. D
E. E only
7. At what point does the mass have its maximum momentum?
A. A
B. B
C. C
D. D
E. E
Explanation / Answer
elastic force F = k*x
area = F*x = K*x*x = k*x^2
elastic potential energy U = (1/2)*k*x^2 = (1/2)*F*x
area represents the potential energy
OPTION ( D )
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2)
velocity of a particle in SHM v = w*sqrt(A^2-x^2)
for maximum acceleration x = 0 ( mean position)
IN thefigure the mean position C
OPTION ( C )
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3)
acceleration of particle in SHM a = w^2*x
for x = A ( amplitude = maximum displacement from mean position )
from the figure the x is maximum at point A and E
OPTION E
=====================
4)
force = F = k*x
for x = A ( amplitude = maximum displacement from mean position )
from the figure the x is maximum at point A and E
OPTION B
==============================
kinetic energy KE = (1/2)*m*v^2
KE is maximum at points where v is maximum
at point c v is maximum , therefore KE is maximum
OPTION E
==========================
potential energy PE = (1/2)*k*x^2
PE is maximum at points where x is maximum
at point A and E , x is maximum , therefore PE is maximum
OPTION A
==========================
7)
momentum P = m*v
v is maimum at point C
OPTION ( C )
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