If a simple pendulum has significant amplitude (upto a factor of 1/e of original ) only in the period between t = 0 to t = ζ then ζ may be called the average life of the pendulum . when the spherical bob of the pendulum suffers a retardation (due to viscous drag) proportional to its velocity with b as the constant of proportionality , the average life time of the pendulum (assuming damping is small ) in second is [ AIEEE 2012]
Answers
HOPING THIS WILL HELP YOU PLZ MARK AS BRAINLIEST AND FOLLOW ME
Answer:
Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease.
Explanation:
NSWER
As the both the masses are in equilibrium the static friction will be acting on blocks which can be found from balancing the forces in vertical direction.
The FBD of block A
Writing force balance in vertical direction for block A
f
1
= weight of the block A =20 N
Writing force balance in vertical direction for block B
f
2
−f
1
= weight of the block B 100 N
The value of frictional force between wall and block B is 120 N