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vlabodo [156]
3 years ago
12

The string of a simple pendulum is held in horizontal position and the bob is released. Find the acceleration of the bob when th

e string makes an angle theta with downward vertical.
How to solve this?​
Physics
2 answers:
Westkost [7]3 years ago
6 0
Cos
−1
(
3
​

1
​
)
At angle theta , l = length of rod v = pendulum velocity u = vertical velocity
By energy conservation,
mglcosθ=
2
mv
2

​
=
2sin
2
θ
mu
2

​

Differentiating wrt θ , and putting
dθ
du
​
=0;
we get, θ=cos
−1
(
3
​

1
​
)
Lesechka [4]3 years ago
4 0

Answer:

i just solved

Explanation:

so easy explkainable

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