question_answer

A simple pendulum is oscillating without damping.  When the displacement of the bob is less than maximum, its acceleration vector \[\vec{a}\] is correctly shown in             [IIT-JEE Screening 2002]

A)

B)

C)

D)

Correct Answer: C

Solution :

                \[{{a}_{c}}=\]centripetal acceleration             \[{{a}_{t}}=\] tangential acceleration             \[{{a}_{N}}=\]net acceleration = Resultant of \[{{a}_{c}}\] and \[{{a}_{t}}\]