SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

A pendulum is executing simple harmonic motion and its maximum kinetic energy is K1. If the length of the pendulum is doubled and it performs simple harmonic motion with the same amplitude as in the first case, its maximum kinetic energy is K2. Then :

a.

K2 = 

b.

K2 =

c.

K2 = 2K1

d.

K2 = K1


Question ID - 50365 :-

A pendulum is executing simple harmonic motion and its maximum kinetic energy is K1. If the length of the pendulum is doubled and it performs simple harmonic motion with the same amplitude as in the first case, its maximum kinetic energy is K2. Then :

a.

K2 = 

b.

K2 =

c.

K2 = 2K1

d.

K2 = K1

1 Answer
5876 Votes
3537

Answer Key : (c) -

Maximum kinetic energy at lowest point B is given by

K = mg (1 − cos )

where = angular amp.

 

 

K1 = mg(1 − cos )

K2 = mg(2)(1 − cos )

K2 = 2K1.



Next Question :

At a distance 12 metres from the foot  of a tower  of height 5 metres, a flagstaff  on top of  and the tower subtend the same angle. The, the height of flagstaff is

a)

b)

c)

d)

None of these


View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.


SaraNextGen