p. force &amp; friction2

# p. force & friction2 - Problems 1. Two blocks connected...

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Problems 1. Two blocks connected by a cord that passes over a mass less, frictionless pulley. Let m = 1.3 kg and M = 2.8 kg. Find the tension in the cord and the magnitude of the acceleration of the two blocks. 2. A block rests on an inclined plane surface. The angle of inclination is increased until it reaches a critical angle of 45 0 , after which the block begins to slide. Find the coefficient of static friction 3. A block of mass m = 15 kg held by a cord on a frictionless inclined plane. What is the tension in the cord if θ = 27 o ? What force does the plane exert on the block? 4. A sphere of mass 3.0x10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 37 o with the vertical. Find (i) the magnitude of the push and (ii) the tension in the cord. 5. A bartender slides a beer stein of mass 0.45 kg horizontally along the bar with an initial speed of 3.5 m/s. The stein comes to rest near the customer after sliding 2.8 m. find the

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## This note was uploaded on 04/16/2011 for the course EEE 30 taught by Professor Dr.sohrabuddin during the Spring '11 term at American Intl. University.

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p. force & friction2 - Problems 1. Two blocks connected...

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