Question

A pendulum 1.5 m long is
reloaded from rest when the
support string is at an angle of
30.0° with the vertical. What is
the speed of the job at the
bottom of the swing?​

Answer 1

Answer:

10meter per sec

Explanation:

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Answer 2

Answer = 2m/s is answer

explanation =. Since energy is conserved:

2

mu

2

=

2

mv

2

+mgh

⇒u

2

=v

2

+2gh

⇒(3)

2

=v

2

+2(9.8)(0.5−0.5cos60)

⇒v=2m/s