A 3.5 kg mass is swung in a vertical circle on the end of a 90 cm long cord.?

J

jst.me

New member
The total energy of the mass is constant, and the tension in the cord at the top of the swing is 11N.
a) Draw FBD and determine how fast the mass is moving at the top.

b) calculate the total energy at the top using the bottom of the swing as the reference point.

c) Calculate the speed at the bottom of the swing.

d) Calculate the tension in the cord at the bottom of the swing.
 
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