The angle in radian through which a pendulum swings and its length is 75 cm and tip describes an arc of length 21 cm, is

Question

The angle in radian through which a pendulum swings and its length is 75 cm and tip describes an arc of length 21 cm, is (A) (7/25) (B) (6/25) (C) (8/25) (D) (3/25)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/mathematics/3af3d4bc45050e13f78f42496c87dfeb-.png" /> Given, length of pendulum =75 cm Radius ( r )= length of pendulum =75 cm Length of arc (l)=21 cm Now, θ=(l/r)=(21/75)=(7/25) radian

Q. The angle in radian through which a pendulum swings and its length is $75 c m$ and tip describes an arc of length $21 c m$ , is

$\frac{7}{25}$

$\frac{6}{25}$

$\frac{8}{25}$

$\frac{3}{25}$

Given, length of pendulum $= 75 c m$
Radius $(r) =$ length of pendulum $= 75 c m$
Length of arc $(l) = 21 c m$
Now, $θ = \frac{l}{r} = \frac{21}{75} = \frac{7}{25}$ radian

Q. The angle in radian through which a pendulum swings and its length is 75cm and tip describes an arc of length 21cm, is

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