A 10-Kg Block on a Horizontal Frictionless Surface Is Attached

question 57

Multiple Choice

A 10-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 1.2 kN/m) .The block is initially at rest at its equilibrium position when a force (magnitude P) acting parallel to the surface is applied to the block,as shown.When the block is 8.0 cm from the equilibrium position,it has a speed of 0.80 m/s.How much work is done on the block by the force P as the block moves the 8.0 cm?

• A)8.3 J
• B)6.4 J
• C)7.0 J
• D)7.7 J
• E)3.9 J

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Demand Curve

A visual chart that illustrates the connection between a product's price and how much of it consumers want to buy.

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