*Problem 4: Beth needs to slide a larger wooden crate (100 kg) across a concrete floor. The coefficient of kinetic friction between the wood and the concrete is µk = 0.5. Beth can either apply 500 N horizontally or 500 N at an angle of 10° above the horizontal. a) Find the magnitude of the acceleration for each method. (Answers: 0.1 0.45) b) How many times more acceleration is generated using the angled version?

Q: A 1,982-kg car starts from rest at the top of a driveway 6.74 m long that is sloped at an angle of…

A: Given:  initial velocity, u = 0 m/s  mass, m = 1982 kg  length, s = 6.74 m  Angle, θ = 30 degree…

Q: We start with some review problems A crate of mass 34.7 kg rests on a level surface, with a…

A:

Q: A crate of mass 30.7 kg rests on a level surface, with a coefficient of kinetic friction 0.119. You…

A: Mass of object is m=30.7 kg Coefficient of kinetic friction is μ=0.119 Applied force is F=320 N…

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A 1,458-kg car starts from rest at the top of a driveway 6.94 m long that is sloped at an angle of…

A:

Q: You have been asked to design an escape ramp for trucks in a downhill 40 mph zone. Assuming a truck…

A:

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A:

Q: A 616-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A: Given data: Mass (m) = 616 kg Acceleration (a) = 0.19 m/s2 Inclined angle (θ) = 36° Acceleration due…

Q: **118. The basic concepts in this problem are presented in Multiple- Concept Example 9. A 225-kg…

A: Find the coefficient of static friction between the crate and the incline?

Q: The figure shows a 2000 kg cable car descending a high hill. A counterweight of mass 1800 kg on the…

A:

Q: a crate of mass m = 130 kg is pushed at constant speed up the frictionless ramp (? = 25.0°) by a…

A: Given Mass (m)  = 130 kg Angle θ = 25°

Q: The figure below shows an object with mass m = 5.0 kg pulled up a ramp inclined at an angle of 8 =…

A: a) Draw the free-body diagram of the object.

Q: The figure shows a box of mass m₂ = 1.1 kg on a frictionless plane inclined at angle 0 = 29°. It is…

A:

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

A:

Q: A penguin slides at a constant velocity of 3.90 m/s down an icy incline. The incline slopes above…

A: Friction  f = uN = umg cos th   Sum of forces = 0 since a = 0 as speed is constant => mg sin th -…

Q: In the Wall of Death carnival attraction, stunt motorcyclists ride around the inside of a large,…

A: Diameter of cylinder = 12 mcoefficient of static friction between the riders' tires and the wall is…

Q: A 40 N box is resting on a table when a 10 N force is applied to it horizontally. The coefficients…

A: Frictional force F = uN

Q: The 1.0 kg block in (Figure 1) is tied to the wall with a rope. It sits on top of the 2.0 kg block.…

A: Given: The mass of the upper block is m1 = 1 kg The mass of the lower block is m2 = 2 kg The force…

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: Part A What is the magnitude of the force vector required to keep the crate moving at constant…

A:

Q: A 769-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A:

Q: A mass m moves in a circle on a smooth horizontal plane with velocity vo at a radius Ro. The mass is…

A:

Q: We start with some review problems A crate of mass 38.7 kg rests on a level surface, with a…

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

Q: 20 m Your Answer: 15 m Rough A 15.0 kg stone slides down a snow-covered hill shown in the figure,…

A:

Q: A 95.5 kN car is traveling at 70.9 mph when the driver decides to exit the freeway by going up a…

A:

Q: We start with some review problems A crate of mass 34.2 kg rests on a level surface, with a…

A:

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: A 39.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each…

A: The mass of the child: The length of the chains: The tension in each chain at the lowest point:

Q: Simulate projectile motion with air resistance in PhysLab. A shuttlecock is launched from the ground…

A:

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the…

A:

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 8.10 kg and the…

A: mass of block A (m) = 8.10 kg mass of block B = M θ = 38oCoefficient of kinetic friction between A…

Q: The coefficient of static friction for the tires of a race car is 0.800 and the coefficient of…

A:

Q: Computation. A block of mass 67 kg is being pulled up a 43° slope by a force, F, directed parallel…

A:

Q: 2. Consider the system as shown in Fig. 2. The pulley is massless and the whole system is…

A: Given, m1=2kgm2=4kgM=8 kgg=9.81 m/s2

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 11.0 kg and the…

A:

Q: The following information pertains to questions 1, 2, and 3. A workman pulls a sled across an…

A:

Q: blem 1: A block of mass m=56 kg slides along a horizontal surface. The coefficient of y friction…

A: Given value--- mass = 56 kg. friction coefficient = 0.26 . initial speed = 21 m/s. final speed = 0…

Q: A student applies a 100 N force at an angle 30° below the horizontal to a block causing the block to…

A: Given data:  Applied force (F) = 100 N Angle (θ) = 30° below the horizontal Speed is constant…

Q: An amusement park in Dubai has a ramp which is frictionless. A child drops a smooth object and it…

A: Given: The height is h=2.2 m. The coefficient of friction is u=0.7. According to work energy…

Q: g up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between…

A: GivenAngle, θ=15°Initial velocity, u=30 m/sCoefficient of static friction between the tires and the…

Q: You push a 200 kg file cabinet (it's coefficient of static friction with the horizontal floor is ms…

A:

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: You want to lift a heavy box with a mass L = 89.0 kg using the two-ideal pulley system as shown.…

A:

Q: A person whose weight is 515 N is being pulled up vertically by a rope from the bottom of a cave…

A: Given: The weight of the person is 515 N. The maximum tension in the rope is 573 N. The depth of the…

Q: In the figure, a stuntman drives a car (without negative lift) over the top of a hill, the cross…

A: Let the mass of the car = m Let the greatest speed at which the driver can drive the car without…

Q: We start with some review problems A crate of mass 20.0 kg rests on a level surface, with a…

A:

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: