nstruction: Clearly show your work on the back of the questoll payes 1. Two 5-N

Question

nstruction: Clearly show your work on the back of the questoll payes 1. Two 5-N boxes are attached to opposite ends of a spring scale and suspended from pu the reading on the scale? A) ON B) 2.5N C)5N D) 10 N E) 25 N 2. A rope holds a 10-kg rock at rest on a frictionless inclined plane as shown. Determine the A)9.8 N B) 20 N C)49 N D) 85 N E) 98 N a. At a playground, a child slides down a slide that makes a 42 angle with the horizontal d of kinetic friction for the child sliding on the slide is 0.20. What is the magnitude of her acc sliding? A) 4.6 m/s B) 5.1 m/s c) 5.4 m/s' D) 6.3 m/s E) 9.8 m/s 4. A 4-kg block and a 2-kg block can move on the horizontal frictionless surface. The block +12-N force that pushes the larger block against the smaller one. Determine the force that on the 4-kg block. A) -4 N B) -12 N C) ON D) +4N E) +8N 12N 5. A 71-kg man stands on a bathroom scale in an elevator. What does the scale read if th with an acceleration of 3.0 m/s A) 140 N B) 480 N C) 690 N D) 830 N E) 910 N 6. A 4-kg block is connected by means of a massless rope to a 2-kg block as shown in the following statement: If the 4-kg block is to begin sliding, the coefficient of static frictionb and the surface must be A) less than zero. B) greater than 2. C) greater than 1, but less than 2. D) greater thar less than 0.5, but greater than zero.

Explanation / Answer

Answer: option (D) 10 N

Though the tension in springs is equal and opposite in direction, but the spring scale will measure the tension (i.e the magnitude of the force exerted by the strings on either sides..

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