A 4.00 kg block is attached to a vertical rod by
means of two strings. When the system rotates
about the axis of the rod, the strings are extended
as shown in (Figure 1) and the tension in the upper
string is 63.0 N.
a) what is the tension in the lower cord?
b) what is the speed of the block?

A 400 kg block is attached to a vertical rod by means of two strings When the system rotates about the axis of the rod the strings are extended as shown in Figu class=


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