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Ok, I am restudying for this test and am using firecracker.me since it'll force me to review things I've covered. I am not sure if this question has the wrong answer or if I am missing something.
A 5N force is applied to a box on the floor. The coefficient of static friction between the box and the floor is 0.5. The box weighs 12N. What is the force of static friction on the box?
A 10N
B 14N
C 5N
D 20N
Fs = us * Normal Force
If the normal force is equal to the weight it is 12 N
us = 0.5
Fs = ??
12 N*0.5 = 6 N is the max static friction which since 5 N is the force applied to the force, I would assume C is the correct answer
Firecracker lists the answer as 10 N but the explanation doesn't seem to make sense.
A 5N force is applied to a box on the floor. The coefficient of static friction between the box and the floor is 0.5. The box weighs 12N. What is the force of static friction on the box?
A 10N
B 14N
C 5N
D 20N
Fs = us * Normal Force
If the normal force is equal to the weight it is 12 N
us = 0.5
Fs = ??
12 N*0.5 = 6 N is the max static friction which since 5 N is the force applied to the force, I would assume C is the correct answer
Firecracker lists the answer as 10 N but the explanation doesn't seem to make sense.