EBK PHYSICS FUNDAMENTALS
2nd Edition
ISBN: 9780100265493
Author: Coletta
Publisher: YUZU
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Chapter 5, Problem 49P
To determine
To calculate: The exact values of acceleration of two books of mass 1Kg each that is kept on top of each other, when a force of 30N is applied horizontally on them.
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•7SSMThere are two forces on the 2.00 kg box in the overhead view of Fig. 5-31, but only one is shown. For F1 = 20.0 N, a = 12.0 m/s2, and θ = 30.0°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) an angle relative to the positive direction of the x axis.
a block of mass "m" slides down an incline, which makes an angle of 30 degrees with horizontal. if the acceleration of the block is 3.3 m/s^2, then find the coefficient of kinetic friction
If a 2.6 kg object is placed on a horizontal surface, what is its magnitude of acceleration if the coefficient of kinetic friction is known to be 0.448 and an applied force of 31.5 N directed at an angle of -26.4 degrees relative to the +x direction acts on the object?
Chapter 5 Solutions
EBK PHYSICS FUNDAMENTALS
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- An 8 kg block rests on a horizontal surface whose coefficients of friction are: s = 0.4 and k = 0.2. The maximum force that can be applied to the block so that it does not move is?arrow_forwardIs it unreasonable to expect a coefficient of friction to exceed unity?arrow_forwardIf the strength of the frictional force is equal to the applied force and oppositely directed, and assuming that all other forces may be ignored, the object must be at rest or ____________________.arrow_forward
- A ramp with friction is inclined at 32.0◦ with respect to the horizontal. If the acceleration down the ramp for a block of mass 5.00 kg is 3.50 m/s^2 , what is the coefficient of friction?arrow_forwardThe weightless block is fixed at the top of the inclined plane, which makes an angle of 300 with the horizon. Weights 1 to 2 of the same mass of 1 kg connected by a thread and thrown over the block. Find the acceleration with which weights and the force of tension of the thread move. The friction in the block is neglected, and the coefficient of friction on the inclined plane is 0.1.arrow_forwardA woman pulls a sled which, together with its load, has a mass of m kg. Let g be the acceleration due to gravity. If her arm makes an angle of theta with her body (assumed vertical) and the coefficient of friction (a positive constant) is mu, the least force, F, she must exert to move the sled is given byarrow_forward
- A barge is pulled by two tugboats. If the resultant force exerted by the tugboats is 5kN force directed along the x-axis of the barge, determine the tensions in each of the rope knowing that a=45 degrees.arrow_forwardA small vochito of mass 607 kg breaks down as it climbs a hill with an angle of inclination of 17° hel. coefficient of friction between the car and the surface is 0.75. What is the magnitude of its acceleration as it moves down the ramp?arrow_forwardWhat minimum coefficient of friction is required if thereis a 60.0 km/h speed limit for a flat horizontal curve ofradius 238 m?arrow_forward
- How long will it take a m = 4.7 kg object traveling with an initial speed vi = 8.3 m/s to come to rest after encountering a rough surface with coefficient of kinetic friction of μk = 0.54?arrow_forwardWhen a surface is horizontal and only gravity acts on an object, the normal force exerted by the surface is equal to ___________________________. On an inclined surface, when is the normal force equal to zero? ______________________________________ _________________________________________________________________________________________arrow_forwardCalculate the acceleration of a block of mass 1.75Kg placed on a 30º inclined plane. Between the plane and the block there is a coefficient of friction whose value is μ=0.1.arrow_forward
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