When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20° below the horizontal, the approximate magnitude of the normal force of the floor on the crate is: O 310 N none of the given choices O 25 N 68 N 180 N

Q: A 2 kg particle moves along an x axis, being propelled by a variable force directed along that axis.…

A: The mass of the particle, m = 2 kg The position vector is x=2 m+ 3 m/st+ct2-4 m/s3t3

Q: In the figure, a crate of mass m = 94 kg is pushed at a constant speed up a frictionless ramp (0 =…

A:

Q: A high jumper with a body weight of 820 N exerts an average vertical force of 1640 N down on the…

A: Given  Force applied by jumper on floor F=1640 N  Time t=0.75s Weight w=820N

Q: In the figure, a crate of mass m = 88 kg is pushed at a constant speed up a frictionless ramp (0 =…

A:

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: A trunk with a weight of 250N is at rest on a floor. The coefficients of friction between the trunk…

A:

Q: A constant force acts on a body of mass 0.9 kg at rest for 10s. If the body moves a distance of 250…

A: Given data, Mass of the body m = 0.9 kg Body is initially at rest u = 0 m/s Distance traveled S =…

Q: If the 50-kg crate starts from rest and attains a speed of 6 m/s when it has traveled a distance of…

A: Given:

Q: A person pushes a 0.20 kg lunch tray across a table, and it slows down as it slides because of…

A: Mass of lunch tray = 0.2 kg  Coefficient of static friction = 0.15  Coefficient of kinetic friction…

Q: A crate that weighs w = 110 N is located on a rough surface. When a force Fapplied = 40 N is exerted…

A: As per guidelines only 3 subparts are solved here. Given, Weight, W = 110 N Fapplied = 40 N

Q: A swimmer has just jumped off a diving board. The swimmer has a mass of m = 56.4 kg and jumps off a…

A:

Q: You push downward on a box at an angle 25° below the horizontal with a force of 750 N. If the box is…

A:

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

A:

Q: Holding onto a tow rope moving parallel to a frictionless ski slope, a 66.9 kg skier is pulled up…

A:

Q: A crate of milk chocolate is being moved up a 63° ramp as shown. The crate has a mass of 10 kg. The…

A: Given:θ=63°m=10kgF=1320 NN=1136 Nμk=0.180d = 1.9m

Q: Two horizontal forces act on a 2.7 kg chopping block that can slide over a frictionless kitchen…

A:

Q: The coefficient of friction between a 33kg exercise mat and the gym floor are us = 0.41 and uk =…

A: Givenμs =0.41μk =0.36m =33 kg

Q: Holding onto a tow rope moving parallel to a frictionless ski slope, a 64.2 kg skier is pulled up…

A: Analyze the free body diagram of the system. Note: Consider the upward direction normal to the…

Q: Problem 10: A horizontal force of magnitude F = 56.6 N pushes on a block of mass m= 5.89 kg. The…

A: Given Data : The mass of the block is given as m = 6.89 Kg. The force acting on the block is given…

Q: A person pushes a block of mass M = 6.0 kg with a constant speed of 5.0 m/s straight up a flat…

A:

Q: A 1.00 × 103-N crate is being pushed across a level floor at a constant speed by a force → F of…

A:

Q: a girl is pulling her 6.8kg wagon along a horizontal sidewalk. the force exerted by the girl is 17 N…

A:

Q: A block of mass M = 2.0 kg rests on a rough horizontal surface. The block starts to slide when a…

A:

Q: A cooler (mass 3 kg) is initially at rest on a horizontal floor. It is then pushed in a straight…

A: The initial speed, u=0 The mass of the cooler is m = 3 kg The displacement of the cooler is s = 1.5…

Q: 2 crates are connected to each other by a rope. One crate(m=17kg) is sitting by the ledge of a…

A:

Q: A block of mass 13 kg is given an initial speed of 12 m/s, after which it slides across a horizontal…

A: initial speed = 12 m/s d = 18 m mass = 13 kg

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: block with a mass of m = 13 kg rests on a frictionless surface and is subject to two forces acting…

A: Free Body Diagram:     a) Net force in x-direction     Fnetx= F2cosθ-F1            =…

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

A:

Q: A 200 kg crate rests on a floor with carpet. A tired worker pushes with a horizontal force of 600 N…

A: Given: The mass of the crate is, M=200 kg The worker pushes with a horizontal force, F=600 NF = 600…

Q: A fish of mass 1kg is lying still on an inclined plane at 3o degrees above the horizontal. the…

A: Gien, a fish of mass m=1 kg is lying still on an inclined plane at θ=3o degrees above the…

Q: A 5 kg block is placed on an inclined plane of angle 30 degrees and pushed up the plane with a…

A:

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

A:

Q: Suppose you are at a bowling alley, where a machine uses a constant force and pushes balls up a ramp…

A: The work done is given as, W = F x l

Q: A box of mass 10 kg is on the back of a flatbed truck. The tručk now travels down a 10° hill with an…

A: Mass of box on the back of the flatbed truck,(m)=10 kg-----(1) [Given] Now on traveling downhill,…

Q: An object is moving to the west at a constant speed. Three forces are exerted on the object. One…

A: The force acting on the object in the north direction is F1 = 10 N. The force acting on the object…

Q: You are trying to slide a sofa across a horizontal floor. The mass of the sofa is 2.0 x 102kg, and…

A:

Q: A 15-pound box sits at rest on a horizontal surface, and there is friction between the box and the…

A: The normal force acting on the box is :  FN=mgcosθ The friction force acting on the box is :…

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: