By applying a constant horizontal force of magnitude F, a student pushes a heavy box of mass M along the kitchen floor at a constant speed v. The coefficient of kinetic friction between the floor and the box is μK. now the student doubles the size of the applied force, so the magnitude of the constant horizontal force which he applies is 2F. What can you say about the motion of the box while the force 2F is being applied? A) The box has a constant acceleration of magnitude F/M  B) The box has a constant acceleration of magnitude 2F/M C) The box has a constant speed of 2v D) The box has a constant acceleration of magnitude between F/M and 2F/M

Q: Kevin works as a janitor, and he is pushing a fully-loaded recycling bin that weighs 557 N across…

A:

Q: 13. A 3.00 friction bet incline at t a. What mag o. What is th . What is th What is th What is the…

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Q: n object with a weight of 100 N is at rest on a horizontal surface. The static coefficient of…

A: Given:   The weight of the object is 100 N. The applied force is 65 N. The coefficient of static…

Q: You are pushing a 42.0kg box horizontally along a flat horizontal surface at a constant speed of…

A: We use use the concept of Newton's second law of motion

Q: A rope is attached to a box. The box is placed on an inclined plane. The box has a mass of 50 kg. I…

A: (a) The component of weight of the box acting downward along the incline and the tension is acting…

Q: A 15 kg object is on a flat surface at rest. Its contact with the surface can be characterized by a…

A: The magnitude of static frictional force is

Q: A 70.0 kg box is being pulled along a horizontal surface. The coefficient of kinetic friction…

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Q: n 8 of 8 19.3 lb object has the acceleration components (0.) (0). (a63) 0.35 +( 0.65 s2 11.7 s2 0.63…

A: At t=3.67sec

Q: You are lowering two boxes, one on top of the other, down the ramp as shown in the figure by pulling…

A: Concept: The Schematic diagram for the Upper box is From the diagram, we can see that Frictional…

Q: A large box is being pushed across the floor at a constant speed of 3.0 m/s. What can you conclude…

A: Given that Constant velocity V = 3 m/s

Q: A box (400 kg) is on the floor. The coefficient of static friction = 0.8 between the box and the…

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Q: A 7780-kg car is travelling at 25.8 m/s when the driver decides to exit the freeway by going up a…

A: Mass of the car m= 7780 kgInitial velocity of the car u = 25.8 m/sFinal velocity of the car v = 13.5…

Q: elevator cabs A and B are connected by a short cable and can be pulled upward or lowered by the…

A: Given data: The mass of cab A is MA=1700 kg. The mass of cab B is MB=1275 kg. The mass of the box…

Q: Three rectangular boxes are stacked on top of each other. All the boxes have the same mass of 1.2…

A: Given: The masses of all the boxes are 1.2 kg each. The coefficient of friction between the boxes…

Q: The coefficient of static friction between a sled and the snow is 0.3, with a coefficient of kinetic…

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Q: Problem 3: You need to push a box across carpet. The box and its contents have a mass of 75 kg. The…

A: We will first identify direction of forces on the box. Then we calculate magnitude of frictional…

Q: You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on…

A:

Q: A 1.0 N block is pushed against the ceiling by a 3.5 N force at a 60° angle as shown in the figure.…

A: Given data:  Weight of the block = 1.0 N Force applied (F) = 3.5 N Angle (θ) = 60° Coefficient of…

Q: A 3.0-kg block slides on a rough horizontal surface. A force of 8.0 N acting parallel to the surface…

A: Given data The block mass is: m = 3 kg The horizontal force is: F = 8 N The kinetic friction between…

Q: A 50.0 N box is at rest on a horizontal surface. The coefficient of static friction between the box…

A: Weight of box (W)=50 N Co-efficient of static friction between box and the surface (μs)=0.5…

Q: A box is given a brief push up a ramp so that it is initially moving at a speed of 6.25 m/s up the…

A: Given Data: Initially speed of the box vi=6.25 ms Weight of box W=72.4 N Angle of ramp θ=20.5°…

Q: You need to push a couch 4 m to the other side of the room. After the initial push to get it going…

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Q: Calculate the magnitude of a normal force on a 22.7 kg block in the following circumstances. a. the…

A: Answer :-  a) N = mg  = 22.7 × 9.8 = 222.46 N (b) N = m g cos40.8° = 22.7 × 9.8 × cos40.8°       =…

Q: We start with some review problems A crate of mass 46.1 kg rests on a level surface, with a…

A: The mass of the crate is 46.1 kg. The coefficient of the kinetic friction is 0.234. The applied…

Q: You are lowering two boxes, one on top of the other, down a ramp by pulling on a rope parallel to…

A: Given that coefficient of  kinetic friction and static friction and masses of two boxes. Then We…

Q: A sled and rider have a total mass of 60.0 kg. They are on a snowy hill. The coefficient of kinetic…

A: The free-body diagram of a rider at the inclined hill is shown below.

Q: Tim got a huge birthday gift from his grandmother. A 400. N crate has been delivered to his…

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Q: A block weighing 60 N rests on a horizontal floor. a) What is the minimum force that will make the…

A: Given data: Weight of block is, W=60 N. Coefficient of static friction is, μs=0.20. Coefficient of…

Q: An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v = 7.5 m/s…

A: The objective of the question is to find the acceleration of the skater in the x-direction…

Q: You are trying to slide a heavy trunk across a horizontal floor. The mass of the trunk is 85 kg, and…

A:

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?”