Question

consider a pendulum swinging to and from . a. at what point in its motion is the kinetic energy the pendulum at minimum. b. at what point in its motion is the momentum at maximum

Answer #1

A simple pendulum is swinging back and forth through a small
angle, its motion repeating every 1.07 s. How much longer should
the pendulum be made in order to increase its period by 0.25 s?

A pendulum consists of a 2.5 kg stone swinging on a 4.1 m string
of negligible mass. The stone has a speed of 7.9 m/s when it passes
its lowest point. (a) What is the speed when the string is at 63 ˚
to the vertical? (b) What is the greatest angle with the vertical
that the string will reach during the stone's motion? (c) If the
potential energy of the pendulum-Earth system is taken to be zero
at the...

A pendulum consists of a 3.8 kg stone swinging on a 4.4 m string
of negligible mass. The stone has a speed of 7.8 m/s when it passes
its lowest point.
(a) What is the speed when the string is at 62 ˚ to the
vertical?
(b) What is the greatest angle with the vertical that the string
will reach during the stone's motion?
(c) If the potential energy of the pendulum-Earth system is
taken to be zero at the...

A pendulum with mass 3 kg is swinging back and forth on a 2.0 m
string and a maximum horizontal displacement of 0.1 m from
equilibrium. It passes through its equilibrium point going to the
right at time t = 0. a) What will its position be at time t = 3.5
seconds? b) What will its velocity be at time t=3.5 seconds?

In simple harmonic motion(simple pendulum), the displacement is
maximum when the:
A.
velocity is maximum
B.
speed is maximum
C.
kinetic energy is maximum
D.
velocity is zero

Revisiting the ballistic pendulum. In lab we used both
conservation of momentum and conservation of energy to relate the
launch speed of a projectile to the maximum height of the swing of
a pendulum. Here we will study the parts of this problem in a bit
more detail.
(a) Briefly explain why momentum is conserved during the
collision of the projectile and the pendulum, but mechanical energy
is not conserved.
(b) Briefly explain why mechanical energy (kinetic plus
potential energy)...

Problem: A Physics student recorded the movement of a swinging
pendulum for 10 s (seconds). The student began recording at the
instant the pendulum was at its resting (vertical) position but
moving to the right. The pendulum then moved right (positive
displacement) and left (negative displacement) several times. The
pendulum took 2 s to swing to the right and the left and then
return to its resting position. The pendulum’s furthest distance to
either side of vertical was 3 in....

1. A(n) _____ is an example of Simple Harmonic
Motion.
ticking wrist-watch
oscillating mass on a spring
beating heart
All of the above
2. _____ is a measure of the maximum displacement for
oscillatory motion.
Amplitude
Frequency
Equilibrium
All of the above
3.The restoring force is calculated using the equation
_____.
F = kx
F = -kx
F = kx2
None of the above
4. The restoring force for a pendulum is proportional to
the mass and inversely proportional to...

3. A pendulum is given an initial potential energy of 2 J (from
rest) and is set to swing free of friction. Answer the following
and explain each answer: (show work)
How long do we have to wait until it stops swinging?
What is the pendulum’s maximum kinetic energy?
Can we determine the bob’s maximum speed? Explain.

A simple pendulum of length L = 10.0 m is released from an angle
of .400rad. Assume the pendulum swings with simple harmonic
motion.
c) Using conservation of
energy(gravitational and kinetic), find the linear speed of the bob
at its lowest point.
d) If the linear speeds found in (b) and (c) were exactly the
same, explain why. If they were different explain why.

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