Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

12,137 questions

16,800 answers

1,421 comments

10,643 users

Physics multiple choice question plz help?

+1 vote
A pendulum with a string of length 2 m has a period of about 2.8 s. What would be the period of the pendulum if the length of the string were increased to 8 m?
A. 1.4 s
B. 5.6 s
C. 11.2 s
D. 44.8 s
asked Jan 15, 2013 in PHYSICS by linda Scholar
reshown Jan 15, 2013 by bradely

1 Answer

+1 vote

 

Initial length ,l1=2 m

Initial time,T1=2.8 s

Increased length,l2=8 m

Relation

T1/T2=sqrt(l1/l2)

2.8/T2=sqrt(2/8)

2.8/T2=1/2

T2=5.6 s

Option B is correct

answered Jan 15, 2013 by bradely Mentor

Related questions

asked Nov 20, 2014 in PHYSICS by anonymous
asked Nov 20, 2014 in PHYSICS by anonymous
asked Jun 10, 2014 in ALGEBRA 1 by anonymous
asked Dec 2, 2014 in PHYSICS by anonymous
asked Nov 20, 2014 in PHYSICS by anonymous
asked Nov 19, 2014 in PHYSICS by anonymous
asked Nov 19, 2014 in PHYSICS by anonymous
asked Nov 6, 2014 in PHYSICS by anonymous
...