Q. 74.3( 105 Votes )

Find the angle in

Answer :

(i) Given: l = 10cm (length of arc) and r = 75cm(radius of circle)


We know that θ = (here, θ is angle subtended by arc)


θ = = radians


The angle by which the pendulum of length 75 cm swings if it describes an arc of 21 cm is radians.


(ii) Given: l = 15cm (length of arc) and r = 75cm(radius of circle)


We know that θ = (here, θ is angle subtended by arc)


θ = = radians.


The angle by which the pendulum of length 75 cm swings if it describes an arc of 21 cm is radians.


(iii) Given: l = 21 cm (length of arc) and r = 75 cm (radius of circle)


We know that θ = (here, θ is angle subtended by arc)


θ = = radians


The angle by which the pendulum of length 75 cm swings if it describes an arc of 21 cm is radians.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

<span lang="EN-USRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics

Using a protractoRS Aggarwal - Mathematics

Using a protractoRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics

Using a protractoRS Aggarwal - Mathematics

The value of <spaMathematics - Exemplar

Using a protractoRS Aggarwal - Mathematics