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What is the minimum force required to start a 15 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.55?

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What is the minimum force required to start a 6.6 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.7?

What is the minimum force required to start a 18.4 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.51?

What is the minimum force required to start a 4.4 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.36?

What is the minimum force required to start a 17.2 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.6?

What is the minimum force required to start a 19.3 kg box moving across the floor if the coefficient of static friction between the box and the floor is 0.39?