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zysi [14]
3 years ago
13

A simple pendulum 2 m long swings through a maximum angle of 30 ∘ with the vertical. part a calculate its period assuming a smal

l amplitude.
Physics
2 answers:
Rus_ich [418]3 years ago
8 0

The time period of the pendulum performing the oscillation of small amplitude is \boxed{2.837\,{\text{s}}}.

Further Explanation:

Given:

The length of the simple pendulum is 2\,{\text{m}}.

The maximum angle of the pendulum’s oscillation is 30^\circ.

Concept:

If the amplitude of oscillation of the simple pendulum is very small, then the oscillation of the pendulum is termed as the simple harmonic.

The time period of a given pendulum is independent of the mass of the bob and amplitude of oscillation. It depends on the length and the acceleration due to gravity of the Earth.

The time period of a pendulum exhibiting simple harmonic motion is given as:

\boxed{T = 2\pi \sqrt {\frac{L}{g}} }                         …… (1)

Here, T is the time period of oscillation of the pendulum, L is the length of the pendulum and g is the acceleration due to gravity of the Earth.

The value of acceleration due to gravity on the Earth is 9.8\,{{\text{m}} \mathord{\left/ {\vphantom {{\text{m}} {{{\text{s}}^{\text{2}}}}}} \right. \kern-\nulldelimiterspace} {{{\text{s}}^{\text{2}}}}}.

Substitute the values of length and acceleration due to gravity in above expression.

\begin{aligned}T&= 2\pi \sqrt {\frac{2}{{9.8}}}\\&= 6.28 \times 0.451\,{\text{s}} \\&=2.837\,{\text{s}} \\ \end{aligned}

Thus, the time period of the pendulum performing the oscillation of small amplitude is \boxed{2.837\,{\text{s}}}.

Learn More:

1. The amount of kinetic energy an object has depends on its brainly.com/question/137098

2. A 700-kg car, driving at 29 m/s, hits a brick wall and rebounds with a speed of 4.5 m/s brainly.com/question/9484203

3. If forces acting on an object are unbalanced, the object could experience a change in , direction, or both brainly.com/question/2720955

Answer Details:

Grade: Middle School

Subject: Physics

Chapter: Simple Harmonic Motion

Keywords:

Simple pendulum, harmonic motion, maximum angle, 30 degree, with vertical, oscillation, time period, small amplitude.

victus00 [196]3 years ago
3 0

Length of the pendulum (l) = 2 m

Acceleration due to gravity = g = 9.8 m/s^2

For small amplitude, the pendulum will undergo simple harmonic motion.

Hence, the time period of the pendulum for small amplitude = 2\pi \sqrt{\frac{l}{g} }

Now, plug the values of l and g

T = 2\pi \sqrt{\frac{2}{9.8} }

T = 2 × 3.14 × 0.451

T = 2.83 seconds

Hence, the time period of the pendulum for small amplitude = 2.83 s

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