Answer: it is period 93
Explanation:
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its very helpful...
Use the kinematic equation: Vf=Vi+at
Then plug;
Vi=14 m/s
a=5 m/s²
t=20 s. Therefore;
Vf=14+(5*20)
Vf=114 m/s.
Answer:
the force of the friction is A-0.52
