Consider a simple pendulum of length L that has a small mass (the bob) of mass m attached to the end of its string. If the pendulum starts out horizontally and is released from rest, show that (a) the speed at the bottom of the swing is 11eb75c5_c74e_59ee_adfc_512017c38fd7_SM7467_11 and (b) the tension in the string at that point is three times the weight of the bob, or T max = 3 mg. [ Hint : Use conservation of energy to determine the speed at the bottom and centripetal force ideas and a free-body diagram to determine the tension at the bottom.]

College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

النسخة 7الرقم المعياري الدولي: 978-0321601834

College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

النسخة 7الرقم المعياري الدولي: 978-0321601834

تمرين 50

Consider a simple pendulum of length L that has a small mass (the bob) of mass m attached to the end of its string. If the pendulum starts out horizontally and is released from rest, show that (a) the speed at the bottom of the swing is

and (b) the tension in the string at that point is three times the weight of the bob, or T max = 3 mg. [ Hint : Use conservation of energy to determine the speed at the bottom and centripetal force ideas and a free-body diagram to determine the tension at the bottom.]

التوضيح

موثّق

(a) The motion of a body in vertical cir...