A pendulum is released from rest and swings down 0.4 meters lower than it began. You...

Question

Question

science physics

Answer 1

Answer #1

We just need to equate the potential energy at the top with the kinetic energy at the bottom.

consider the following equation,

g*h=

g=accelaration due to gravity

h=height=0.4meters

v=velocity

v= 2*g*h

g=10 m/s^2

v=2.83 m/s

second one is the answer

Answer 2

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