m Getting Started Adobe PhoneGap Build (0/2 suomissions usea Save AP5.101 Submit

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m Getting Started Adobe PhoneGap Build (0/2 suomissions usea Save AP5.101 Submit AP5.10.1 Section 16: Sample problem pushing a box horizontally AP5.16.3 A 50-kg box is dragged along a horizontal surface at constant speed, as (1.50) shown. If needed, use g= 10 m/s2. For an angle of 20° and coefficient of kinetic friction of 0.4 between the box and the surface, the magnitude of the dragging force Fis most nearly O 730 N O 1460 N 186 N 0213N O 500 N (0/2 submissions use .20 50kg Save AP5.16.3 Submit AP5.1 Chapter 6: Applications of Newton's Laws Section 1: Sample problem: a mass on ropes

Explanation / Answer

Frictional force Ff = mu (m g - F sin theta)

= 0.4 * (50 *10 - F sin 20)

F * cos 20 = 0.4 * (50 *10 - F sin 20)

0.939 F = 200 - 0.137 F

Magnitude of dragging force F = 186 N

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