Question

find the angle
which
through
the
Pendullum oscillates
if its lenght
is 75cm and tap description as
lenght of 21 cm​

Answer 1

Concept :- ∅ = L/R

Where ∅ is the angle subtended at the centre. L is the arc length of circle . R is the radius of circle.

(a) L = 10cm, R = 75cm

∅ = 10/75 = 2/15 rad

(b) L = 15cm, R = 75cm

∅ = 15/75 = 1/5 rad

(c) L = 21cm , R = 75 cm

∅ = 21/75 = 7/25 rad

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