Problem 3: A 38.8-kg crate is being pushed at a constant speed by a force of 311 N at an angle of 29 degrees below the horizontal, as shown. Part (a) What is the coefficient of kinetic friction between the crate and the floor? Numeric : A numeric value is expected and not an expression. Uk = Part (b) If the force is pulling at 29 degrees above the horizontal instead of below, as shown, what is the acceleration of the crate in m/s2, assuming the coefficient of friction is the same as in the previous part? Numeric : A numeric value is expected and not an expression. a =

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Chapter4: The Laws Of Motion
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Problem 3: A 38.8-kg crate is being pushed at a constant speed by a force of
311 N at an angle of 29 degrees below the horizontal, as shown.
Part (a) What is the coefficient of kinetic friction between the crate and the floor?
Numeric : A numeric value is expected and not an expression.
Uk =
Part (b) If the force is pulling at 29 degrees above the horizontal instead of
below, as shown, what is the acceleration of the crate in m/s2, assuming the
coefficient of friction is the same as in the previous part?
Numeric : A numeric value is expected and not an expression.
a =
Transcribed Image Text:Problem 3: A 38.8-kg crate is being pushed at a constant speed by a force of 311 N at an angle of 29 degrees below the horizontal, as shown. Part (a) What is the coefficient of kinetic friction between the crate and the floor? Numeric : A numeric value is expected and not an expression. Uk = Part (b) If the force is pulling at 29 degrees above the horizontal instead of below, as shown, what is the acceleration of the crate in m/s2, assuming the coefficient of friction is the same as in the previous part? Numeric : A numeric value is expected and not an expression. a =
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