Answer:
0.117m/s
Step-by-step explanation:
Speed = distance/time
Given
Distance (radius of string) = 15.3cm
Convert to metres
15.3cm = 15.3/100
15.3cm = 0.153m
Period (time) = 1.31s
Substitute into the formula
Speed of the rubber = 0.153/1.31
Speed of the rubber = 0.117m/s
Hence the speed of the rubber block in m/s is 0.117m/s