Answer:
See below
Step-by-step explanation:
See the attached file for the table answers.
Problem 1:
Find the mass with F=ma, where a is acceleration due to gravity (9.8 m/s^2). 1 Newton is defined as 1 kg*m/s^2.
25N = m*(9.8 m/s^2)
m = (25 kg*m/s^2)/(9.8 m/s^2)
m = 2.55 kg
Since there is no acceleration, Fr = Fa and net acceleration is 0.
Problem 2
F = ma
a = F/m
a = (2 kg*m/s^2)/2.6kg
a = 0.77 m/s^2
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Friction Coefficients
f = uN where f is friction force, u is the coefficient of friction, and N is the normal force.
1) -3N = u*(3N)
u = -1
2) -3N = u*(5N)
u = (-3/5) or -0.6
F = ma
a = F/m
a = (2 kg*m/s^2)/2.6kg
a = 0.77 m/s^2