a) 2 degrees of freedom
b) 3 degrees of freedom
c) No degrees of freedom
d) 1 degree of freedom
Answer: d
Explanation: A degrees of freedom may be defined as, the number of parameters of system that may vary independently. It is the number of parameters that determines the state of a physical system. In one dimensional problem, every node is permitted to displace only in the direction. Thus each node has only one degree of freedom.
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