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Multiple Choice
You push a 3-kg mass against a spring and release it from rest. Its maximum acceleration is 10m/s<sup2></sup> when pushed back 0.5m. What is the (a)spring constant and (b) restoring force at this point?
A
60 N/m; 30 N
B
120 N/m; 45 N
C
100 N/m; 35 N
D
30 N/m; 15 N
5:37m
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