Physics, asked by haasini0318, 9 months ago

A simple pendulum completes 20 vibrations
in 43 seconds Calculate the length of
the pendulum. Take g = 9.8 m/s²

Answer this as fast as possible the first person who will answer with very appropriate steps will be marked as the brainliest and would get points

Answers

Answered by sk1962716
1

Answer:

is formula ko use kro or solve kro....

Explanation:

if you satisfied my answer plz mark brainlist and like

Attachments:
Answered by probrainsme101
0

Concept:

Time period of simple pendulum: The time taken by the pendulum to complete one oscillation or vibration is called its time period. It is given by,

T = 2π √(l/g)
where T = Time period of the pendulum

l = Length of the pendulum

g = Acceleration due to gravity

Time period is also given by,

T = Total time taken/Number of oscillations

Given:

Time taken by the pendulum to complete 20 vibrations = 43 s

Acceleration due to gravity, g = 9.8 m/s²

Find:

The length of the pendulum.

Answer:

The length of the pendulum is 1.15 m.

Solution:

Time taken by the pendulum to complete 20 vibrations = 43 s

Time taken by the pendulum to complete 1 vibration, T = 43/20 s

                                                                                          = 2.15 s

∴ Time period of the pendulum = T = 2.15 s

Let the length of the pendulum be l.

Time period is given by,

T = 2π √(l/g)                   -------------------------- (i)

Putting the values of T and g in (i), we get

2.15 = 2(3.14) √(l/9.8)

2.15 = 6.28 √(l/9.8)

√l/9.8) = 2.15/6.28

√(l/9.8) = 0.3424

Squaring both sides we get,

[√l/9.8]² = (0.3424)²

l/9.8 = 0.1172

l = 0.1172 × 9.8

l = 1.15 m

Hence, the length of the pendulum is l = 1.15 m.

#SPJ3

Similar questions