If a block is sliding at constant speed across a frictionless surface, which of the following can we say is true? Explain why. a. There are no forces acting on the block in the vertical direction. b.The net for on the block is zero. c. There are no forces acting on the block in the horizontal direction. d. The block has a positive acceleration.

Q: Mario is riding on his skateboard along a horizontal section of the pavement. If he encounters a…

A: The magnitude of the friction force is given as f=450 N

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: 2. Two masses were connected by a frictionless pulley and is placed in an inclined plane with…

A: Newton's first law: A body continues to be in a state of rest or a state of motion unless and until…

Q: 5. A 30 kg crate is pushed across the floor with a horizontal force of 240 N. a. What is the…

A: Given value--- mass = 30 kg. applied force = 240 N. We have to find--- a. What is the…

Q: A 5.0 kg wooden block is sitting on a plane of dry snow. What is the force required to start sliding…

A:

Q: The question refers to a coin which is tossed straight up into the air. After it is released, it…

A: Given:-  You toss the coin in the upward direction straight up in the air after it is released, it…

Q: If a horizontal force is applied to an object, how can you tell if an object will start moving?…

A: If a horizontal force is applied to an object which is at rest.

Q: A person pulls a crate of mass m = 12.0 kg on a rough horizontal surface at a constant speed of v =…

A:

Q: Which type(s) of friction is proportional to the normal force between two surfaces? Select one: a.…

A: b) Static and Kinetic friction

Q: 1,180-N crate is being pushed across a level floor at a constant speed by a force F of 390 N at an…

A:

Q: A stationary 25 kg object is located on a table near the surface of the earth. The coefficient of…

A:

Q: A 15 kg block is observed to be speeding up as it moves up an incline. The magnitude of the block's…

A: A 15 kg block is observed to be speeding up as it moves up an incline. The magnitude of the block's…

Q: 1. Which of the following is TRUE about an object with constant acceleration? a. A constant force…

A: 1. an object with constant acceleration when a constant force is applied to the object. because we…

Q: 1. Consider the following block on an incline (M= 80kg), connected by a rope to hanging block (m =…

A: Block of Mass M=80kg

Q: a. If an object is accelerating to the right, the net force on the object must be directed towards…

A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…

Q: Kercey pushes a 6.7-kg crate along a rough surface with 27.43 N of force. He observes that it is…

A:

Q: 3. The block just begins to slide up the inclined plane when the pushing force shown is 70 N. a.…

A:

Q: An 84 kg skier glides down a hill.  The coefficient of kinetic friction μk  = 0.15. The angle of…

A: (a) Draw a free body diagram showing all the forces acting on the skier

Q: An object acted on by three forces moves with constant velocity. One force acting on the object is…

A: Given-        -   object acted on by three forces moves with constant velocity        -   F1 = 6.5 N…

Q: A small block (m = 2 kg) is being pushed along (parallel to) a rough surface by a force with…

A:

Q: 2. Three blocks are lined up in a row on a frictionless table. All three blocks are pushed forward…

A: Solution: given that m1 = 1 kg m2 = 2 kg m3 = 3 kg F = 12 N

Q: Q1: A car's engine exerts a force of 720 N to the right. What is the resultant force acting on the…

A: Recall  F=ma Ffr=μN

Q: 7. In the setup shown above, if m, = 2.0 kg and the coefficients of static and kinetic friction…

A:

Q: 6. A book is initially at rest on a table and it starts to move forward. Which of the following best…

A: According to Newton's first law if a body is at rest it will remain at rest and if it is in motion…

Q: A 4.0-kg box lies on a table. You pull it up with a force of 12 N and it doesn't move. Match the…

A: mass of box (m) = 4 kg upwards force exerted on the box = 12 N g = 10 ms2

Q: Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the…

A:

Q: If the coefficient of kinetic friction between a 28 kgkg crate and the floor is 0.38, what…

A:

Q: The diagram shows a 4.0 kg object accelerating at 10 m/s2 on a rough, horizontal surface. What is…

A:

Q: Draw a free-body diagram that includes the vertical and horizontal forces. b) What is the normal…

A:

Q: 3. A 40-kg crate falls off a truck traveling at 80 km/h on a level road. The crate slides along the…

A:

Q: als the weight of the object.

A: Given: To find the correct option which is shown below:

Q: A block released lides with neglig nclined track, arc

A: when an object moves along a circular path it experience a centripetal force. an object experience a…

Q: . A block of mass 30 kg is at rest on a flat surface. The coefficient of static friction of the…

A: mass of block (m) = 30 kg coefficient of static friction = 0.4coefficient of kinetic friction = 0.3…

Q: 2. A horizontal force of 120 N is needed to initially move a 50-kg container from rest. A constant…

A:

Q: wo crates A and B are connected by a light rope along the horizontal surface. Mass of A is 4kg and…

A:

Q: Given a block which is at rest on a perfectly flat smooth table. You push with your hand…

A: Given Mass m = 2.00 kg Acceleration a = 5.00 m/s2

Q: As a girl pushes an object across a wood floor, she suddenly comes to an area where the floor has…

A: In order to resolve the above problem, the concept of kinetic friction is used. When an object…

Q: A box is pulled at a constant speed, v, along a horizontal surface with a kinetic coefficient of…

A: According to Newton's First Law of Motion, an external force is required to change the motion of the…

Q: Newton's second law states F = ma. Which of the following scenarios must be true? A. You lift…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A block is sliding down a plane inclined at an angle ?>0∘ to the horizontal. Select all the…

A: If a box slide down the inclined plane at an angle θ,

Q: A box remains stationary after it has been placed on a ramp inclined to the horizontal. Which of the…

A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…

Q: Push Surface A Friction Push Surface B Friction

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: The direction of the frictional force is а. same direction of the intended motion b. perpendicular…

A:

Q: 1. A 250 puck is sliding across a smooth ice surface (u = 0.019) and slows down from 25.120 m/s to…

A:

Q: 14. Compute the minimum distance that a truck slides on a horizontal asphalt road if it is traveling…

A: Given: Mass of the truck m=8000 kg, Initial velocity vi=20 m/s, Coefficient of sliding friction…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”