Two identical simple pendulums A and B are fixed at same point. They are displaced by very small angles `alpha` and `beta ( beta gt alpha)` and released from rest. Find the time after which B reaches its initial position for the first time. Collisions are elastic and length of strings is `l`.

Two identical simple pendulums A and B are fixed at same point. They are displaced by very small angles alpha " and " beta ( = 2 alpha) respectively and are simultaneously released from rest at time t = 0. Collisions between the pendulum bobs are elastic and length of each pendulum is l. (a) What is the minimum number of collisions between the bobs after which the pendulum B will again reach its original position from where it was released ? (b) Find the time (t) at which B reaches its initial position for the first time after the release. (c) Write the kinetic energy of pendulum B just after n^(th) collision? Take mass of each bob to be m.

Two simple pendulums A and B have length 4l and l respectively. They are released from rest from the position shown. Both the angles alpha " and " beta are small. Calculate the time after which the two string become parallel for the first time if- (a) alpha=beta " " (b) beta=1.5 alpha

Two simple pendulum A and B having lengths l and l//4 respectively are released from the positions as shown in figure. Calculate the time after which the release of the two strings become parallel for the first time. Angle theta is very small.

Two simple pendulums A and B having lengths l and (l)/(4) respectively are released from the position as shown in Fig. Calculate the time (in seconds) after which the two strings become parallel for the first time. (Take l=(90)/(pi^2) m and g=10(m)/(s^2) .

Two simple pendulums A and B having lengths l and (l)/(4) respectively are released from the position as shown in Fig. Calculate the time (in seconds) after which the two strings become parallel for the first time. (Take l=(90)/(pi^2) m and g=10(m)/(s^2) .

Two simple pendulum of length l and 16l are released from the same phase together. They will be at the same time phase after a minimum time.

Two simple pendulum of length l and 16l are released from the same phase together. They will be at the same time phase after a minimum time.