A pendulum of mass 22 kg is released from rest at some height, as shown by
point A in the image below. At the bottom of its arc at point B, it is traveling at
a speed of 13 m/s. What is the approximate amount of energy that has been
lost due to friction and air resistance? (Recall that g = 9.8 m/s²)
10 m
B
OA. 134 J
OB. 45 J
OC. 218 J
D. 297 J

Question

07-10-2022
Physics

Answered

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A pendulum of mass 22 kg is released from rest at some height, as shown by
point A in the image below. At the bottom of its arc at point B, it is traveling at
a speed of 13 m/s. What is the approximate amount of energy that has been
lost due to friction and air resistance? (Recall that g = 9.8 m/s²)
10 m
B
OA. 134 J
OB. 45 J
OC. 218 J
D. 297 J

Sagot :

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