A 4.8 kg suitcase is sliding across a horizontal floor of an elevator. The coefficient of kinetic friction between the suitcase and the floor is 0.28. (a) If the elevator is moving upward at a constant speed of 1.6 m/s, find the kinetic frictional force acting on the suitcase. (b) If the elevator is accelerating upwards at 1.6 m/s^2, find the kinetic frictional force acting on the suitcase. (c) If the elevator is accelerating downwards at 1.6 m/s^2, find the kinetic frictional forceacting on the suitcase.

Q: An object of mass 5 kg kept on a rough surface is pulled by a forward force of 18 N. If the object…

A:

Q: When two objects are in contact with no relative motion, which of the following statements about the…

A: When the two systems are in contact and moving relative to one another, then the friction between…

Q: An 8.00 kg block of steel is at rest on a horizontal table. The coefficient of static friction…

A: Given:- m = 8 kg μs = 0.450

Q: Alejandra is attempting to drag her 32.6-kg Golden Retriever across the wooden floor by applying a…

A: The expression of net force can be defined as,

Q: A hot-air balloon of mass 250 kg is descending vertically with downward acceleration of magnitude…

A: Solution: Given that mass M = 250 kg downward acceleration, a = 1.6 m/s2 mass to be thrown out to…

Q: A block moving to the right on a level surface with friction is pulled by an increasing horizontal…

A: The frictional force or friction is the force that plays between two bodies that come in contact or…

Q: Ed is pushing with a force of 203.3 N at an angle of 0 = 57.5 degrees with respect to the vertical…

A: Given: FEC=203.3 Nθ = 57.5 °FAC=87.3 Nϕ=36.1°Mass of couch = 71 kgCoefficient of static friction =…

Q: A block of mass 132 kg lies on a horizontal plane. A horizontal force F of magnitude 1140 N is…

A:

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: A boy has stacked two blocks on the floor so  that a 5.00kgblock is on top of  a1.60kg block. If the…

A: A boy has stacked two blocks on the floor so  that a 5.00kgblock is on top of  a1.60kg block. If the…

Q: Block A, having a mass of 15 kg, is placed on top of block B, having a mass of 30 kg, on a…

A: To find the force applied on block B with the condition of not letting block A slip-on B, the…

Q: A 28 kg suitcase is being pulled with constant speed by a handle that is at an angle of 26 ∘ above…

A: Given, mass of the suitcase m = 28 kg Suitcase pulled by a handle at angle θ=26∘ Normal force…

Q: A block of mass m= 7.00 kg is pulled along a horizontal friction ground with the cord exerting an F=…

A:

Q: A sphere of mass 5.8 x 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A:

Q: block of mass M is pulled by a force T at an angle theta about the horizontal and moves at constant…

A:

Q: A box of mass 33 kg sits at rest on a ramp that makes an angle of 11 degreeswith the horizontal. The…

A: Draw the free-body diagram of the box.

Q: e 2 blocks stacked on a table. The top block has a mass of 2.0 kg, and the bottom block has a mass…

A: friction force is a contact force and opposing relative motion. FS = μs m g     μ s= coefficient of…

Q: Assume that the pulleys are frictionless, but the horizontal surface is rough with a coefficient of…

A:

Q: Two blocks, of weights 2.5 N and 5.3 N, are connected by a massless string and slide down a 43°…

A:

Q: kinetic

A: Given: Mass of the box, M = 13 Kg Mass of the second box, m = 5 Kg Coefficient of friction between…

Q: The force that is exerted on an object by any surface which is in contact and that which acts…

A:

Q: The two barges shown here are coupled by a cable of negligible mass. The mass of the front barge is…

A: Givenmass of front brage m1=2.00x103 kgmass of rear brage m2=3.00x103 kgForce of pull by tugboat…

Q: A block with mass m1 = 9.2 kg rests on the surface of a horizontal table which has a coefficient of…

A: if the block m2 moves a distance x down the block m1 must move same distance x right to keep the…

Q: The drawing shows a circus clown who weighs 920 N. The coefficient of static friction between the…

A:

Q: A block of mass m1 = 3.9 kg is placed on top of a block with mass m2 = 5.4 kg. A force, F = is…

A:

Q: A 4.00 kg block rests on a 30 degree incline. If the coefficient of the static friction between the…

A: Here, the figure shows a box of mass m inclined at an angle θ = 30o with weight mg and force F and…

Q: Block B has mass 6.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass…

A:

Q: The component of the force along the inclined plane due to mass of the body on a inclined plane is…

A: Option 4 is the right answer  Force of friction is 1400 N

Q: A box with a weight of 50 N rests on a horizontal surface. A person pulls horizontally on it with a…

A: Given data: The weight of box is W=50 N. The horizontal force is FH=15 N. The coefficient of static…

Q: Problem 1: A horizontal force, F1 = 65 N, and a force, F2 = 18.1 N acting at an angle of 0 to the…

A:

Q: A 20 kg sled is being pulled along the ground by a 100 N force directed 30° above horizontal.  Given…

A:

Q: the coefficient of static friction between block A and a horizontal floor is 0.320, and the…

A: Given that the coefficient of static friction between block a and a horizontal floor and the…

Q: A block of mass 105 kg lies on a horizontal plane. A horizontal force F of magnitude 1001 N is…

A: The free-body diagram of the block on the horizontal plane is shown below. Here, m is the mass, F…

Q: The coefficient of static friction between a 2.0 kg box and a plane inclined 28° to the horizontal…

A:

Q: A sled is pulled at a constant velocity across a horizontal snow surface. If a force of 4.0 x 10^1 N…

A: The free body diagram of the sled is given below.

Q: A sphere of mass 2.9 x 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A:

Q: Two blocks are connected over a massless, frictionless pulley. Block m1 has a mass of 1.00 kg and…

A:

Q: ar, which may slide on a vertical rod is subjected by three forces. A is 1200 N vertically upward.…

A: Resultant of forces can be determined by resolving the forces into its components.

Q: A mass m is being pushed by a horizontal force F of magnitude 209.0 N. The coefficient of kinetic…

A: Given : Mass of block m = 10 kg Angle of inclination is 30° Horizontal force F = 209 N Coefficient…

Q: A horse pulls a box of mass M = 55 kg across a rough horizontal surface by applying a horizontal…

A:

Q: If the coefficient of kinetic friction between a 22-kg crate and the floor is 0.30, what horizontal…

A: Given data: The mass of crate is m=22 kg. The kinetic friction is μ=0.3.

Q: A block (mass = 200.00 g) is placed on an inclined plane 45 degrees from the horizontal. The…

A:

Q: A block with mass m1 = 4.00 kg and a ball with mass m2 = 7.00 kg are connected by a light string…

A:

Q: Assume that the pulleys are frictionless, but the horizontal surface is rough with a coefficient of…

A:

Q: weight 500 N is lying on a rough horizontal plane having coefficient of friction 0.3. Find the…

A: We know that We have given that A body of weight 500 N is lying on a rough horizontal plane having a…

Q: Find the downward acceleration of ml if it has a mass of 108 kg and the kinetic coefficient of…

A:

Q: A student, crazed by final exams, uses a force of magnitude 80 N and angle u =70 to push a 5.0 kg…

A: Draw the free body diagram on the block as shown below

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: