1. When a student stands on a rotating table, the frictional force exerted on the student by the table is a.greater in magnitude than the frictional force exerted on the table by the student b. less in magnitude than the frictional force exerted on the table by the student c. equal in magnitude than the frictional force exerted on the table by the student d. directed away from the center of the table 2. A child whirls a ball at the end of a rope, in a uniform circular motion. Which of the following statements is NOT true? a. speed of the ball is constant b. radius is constant c. velocity of the ball is constant d. magnitude if the ball's acceleration is constant 3.A centripetal force F is applied to an eraser moving at a constant speed v in a horizontal circle of radius r. if the radius quadrupled and the speed is doubled, what happened to the centripetal force? a. increased by a factor of 2 b. decreased by a factor of 2 c.doesn't change d. Increased by a factor of square of 2

Q: Calculate the attractive force of gravity between a 0.27 kg birthday cake and a 8 kg student who is…

A: GivenMass of birthday cake is m1=0.27(kg)Mass of student is m2=8(kg)Distance between masses are…

Q: MULTIPLE CHOICE uestion 7 hat is the magnitude of the net force produced by these forc

A: Forces:F1 = 105 NF2 = 87 NAngle, θ = 90°

Q: 9. A person with a mass of 65 kg is standing on a crate that has a mass of 35 kg. The crate is…

A: option (A) 980 N

Q: 3. The coefficient of kinetic friction between rubber and wet concrete is about 0.550. The driver of…

A: Given data Mass of the car m = 1050 kg The coefficient of kinetic friction between rubber and wet…

Q: 2) Suppose you put an object on an inclined slope and let go. If there is enough friction between…

A:

Q: Which of the following statements are true considering the forces on the system of you and a bicycle…

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Q: The driver of a 1200 kg car steps on the brakes on a dry horizontal concrete roadway. Determine the…

A: Total mass = m= 1200 kg Co efficent of friction = 0.5 Frictional force between each tire= ?

Q: In the system in the figure, in which direction does the net force pressing the object perpendicular…

A: The force components are Fsin37° along direction IV and Fcos37° along direction II.  The components…

Q: 2) A block of mass m is placed on top of a block of mass M. A horizontal force F is applied to block…

A: A block of mass m is placed on top of a block of mass M.  horizontal force F is applied to block M…

Q: 3: A rope is strung horizontally between two walls 10 meters apart as a way to hang things from the…

A:

Q: 4. The following forces act on an object. For each, calculate the force that will cause the object…

A:

Q: 2. When a penny rest on a rotating vinyl disc, the frictional force exerted on the penny by the disc…

A:

Q: In the diagram above, q₁ = 145 nC, q2 = 187 nC, and q3 = 118 nC. What is the magnitude of the net…

A:

Q: 4. The cable between a towing truck and a disabled car has a breaking strength of 2000 N. The mass…

A:

Q: Internal force holds together the particles as a single object. a) True b) False

A: True

Q: F:

A: Given values:- F1=25 N -----(1) F2=50 N -----(2) α=300 -----(3) θ=450 -----(4) β=300 -----(5) Now…

Q: QI-A 75-Kg man wants to pull a 145- Kg box and the coefficient of static friction between the box…

A:

Q: F4-27. Replace the loading system by an cquivalent resultant force and couple moment acting at point…

A: moments due to couple can be added together using the same rules as adding any vectors

Q: Two forces P and Q acting on a particle O as shown in Fig. Determine the magnitude and direction of…

A:

Q: 1. If 8 = 30° and T = 6 kN, determine the magnitude of the resultant force acting on the eyebolt and…

A: Solution:-Given thatθ=30°T=6 kN

Q: Q1-A 75-Kg man wants to pull a 145- Kg box and the coefficient of static friction between the box…

A: The mass of the man is given as, m=75 kg, The mass of the box is given as, mb=145 kg, The…

Q: 1. Two blocks are connected via a pulley, both blocks have a mass of 10.kg. One block rests on a…

A: Given Data: The mass of the blocks is, m = 10 kg. The coefficient of friction between the block and…

Q: A warehouse worker applies a horizontal force of 85 N to a 40kg box standing on the horizontal floor…

A:

Q: 5) Two crates connected by a rope lie on a horizontal surface as shown in the figure. Crate A has…

A:

Q: 8. A 300-N force is exerted at a 60-degree angle to move a railroad car eastward along a railroad…

A: Applied force (F) = 300 N angle (θ) = 60o south of east

Q: A ball with a mass of 0.8 kg is attached to the end of a 2 m long cable and rotated in a circular…

A:

Q: 2) m, m. 2, Two masses are attached by a string over a pulley as shown above. The hanging mass is…

A: from F.B.D let assume hanging mass is accelerating upward with acceleration a, because both masses…

Q: 6) The kinetic friction force that a horizontal surface exerts on a 60.0-kg object is 50.0 N. If the…

A: From Newton’s second law of motion.

Q: Question 24 A system of two cables supports a 150-N ball as shown. 30° 150 N What is the tension in…

A:

Q: Part A On an aircraft carrier, a jet can be catapulted from 0 to 140 mi/h in 1.95 s . If the average…

A: Answer Given  Initial velocity v0 = 0 m/s Final velocity vf = 140 mi/hr = 62.58 m/s Time t = 1.95 s…

Q: Determine the magnitude of the force which member CD exerts on the pin at C. 28° B 0.80 m Answer:…

A: The moment about point B,…

Q: 3. Does the coefficient of friction depend on the type of surface in contact?

A: Given:- coefficient of friction depends on which  factors

Q: Which of the following statements is always true? a)?If an object is moving, an unbalanced force…

A: Given Differents statement are given We have to choose the correct option from given options.

Q: 6- The tower is held in place by three cables. If the force ofeach cable acting on the tower is sho-…

A: SOlution: given that  FCD = 600 N FDA = 400 N FDB = 800 N To determine the magnitude and coordinate…

Q: 4N 6N 8 N 11 N I 7 N

A: Given data:  F1 = 4 N, upward  F2 = 6 N, right F3 = 11 N, right F4 = 7 N, downward F5 = 8 N, left

Q: Suppose that you are holding a cup of coffee in your hand. Identify all forces on the cup and the…

A:

Q: Two   blocks  are  connected  via  a  pulley,  both  blocks  have  a  mass  of  10.kg.  One  block…

A: As the hanging block moves down m2g-T=m2a.........(i)

Q: 21. Cooking an omelet on a boat is tricky because the tilting of the boat can cause the omelet to…

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Q: 2. Two blocks of masses ml and m2, with ml has greater mass than m2, are placed in contact with each…

A:

Q: 2. An incline of the dimensions shown rests on the ground. Two boxes of equal mass are attached by a…

A:

Q: An object sits at rest on a ramp. As the angle of inclination of the ramp increases, the object…

A: Given Data :  motion of object on an inclined plane when angle of inclination is increased  To Find…

Q: How is the mass of an object different from its weight? Multiple Choice They are not different, they…

A: The weight of an object is the amount of force exerted on the object by gravity while the mass is…

Q: wo boxes are connected to each other by a string as shown in the figure. The 10-N box slides without…

A: According to Newton's second law  F = ma

Q: The doorstop is inserted with a rightward horizontal force of 30lb. If the coefficient of static…

A: The direction of the resultant force between the door and the doorstep with respect to y - axis is…

Q: Inertia is proportional to A. Force B. Velocity C. Mass D. Acceleration   31. In the free-body…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!