2. A child wants to push 10-kg block of ice across a frozen lake as shown below. For ice sliding on ice, the coefficient of friction of static friction μµ = 0.1 and the coefficient of kinetic friction is 0.03. 25° ILL r (a) Calculate the minimum force F he must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained?

Q: 2. A box slides down an inclined plane with an acceleration that is precisely two-thirds what it…

A: Let the box have a mass m. When this box is on an inclined plane, the weight of the box acting…

Q: kg The terminal velocity of a 4x10-5 raindrop is about 7 m/s. Assume a drag force FD=-bv. a)…

A:

Q: A 45.0kg box requires a force of 12.0N to start moving and only 8.0N to keep moving at a constant…

A: Given data:  Mass (m) = 45.0 kg Maximum static friction force (fs) = 12.0 N Kinetic friction force…

Q: 6. A 3160 kg elevator is supported by a steel cable. If the tension in the cable is 58600_N, then…

A:

Q: b) What is the normal force between the backpack and the floor? Your answer: O 1.5 N O 7.4 N 15 N O…

A: Mass, m = 7.5 kgCoefficient of friction, µ = 0.2Acceleration due to gravity, g = 9.81 m/s2

Q: A safe weighing 1500N is to be lowered at constant speed down the ramp 5m long from a truck 3m high;…

A: The force formed as a result of two surfaces which are in contact and slide against each other is…

Q: What is the maximum upward acceleration an elevator cable can tolerate

A:

Q: A safe weighing 1500N is to be lowered at constant speed down the ramp 5m long from a truck 3m high;…

A: (a) Analyze the FBD of the given system. Note: Consider the rightward direction along the inclined…

Q: Two masses are connected by a string and pulled along a frictionless surface by another string to…

A:

Q: A skier starts from rest on the 43° slope at time t=0 and is clocked at t = 2.45 s as he passes a…

A: First from given distance covered and time taken we can calculate acceleration of the skier using…

Q: 1A. A 3.00 kg mass is initially at rest on a horizontal surface. An applied force of 25.0 Ni then…

A:

Q: A 3.00-kg block starts from rest at the top of a 30.0° incline and slides 2.00 m down the incline in…

A: using equation of motion d = ut + (1/2)a(t)2 Where d is the distance travelled u is the initial…

Q: 4. If the pushing force is increased slowly, what is the maximum values of height d that will ensure…

A:

Q: 3. A 45 kg wooden box sits at the top of an inclined plane that has an angle of 27°. Calculate the…

A: Mass of the box (m) = 45 kgAngle of the inclined plane (θ) = 27°Coefficient of kinetic friction…

Q: A 0.40 kg block rests on a desk. The coefficient of static friction is 0.20. You push the side of…

A: Given  mass(m)=0.4 kg coefficient of static friction (μk)=0.2

Q: A 0.40 kg block rests on a desk. The coefficient of static friction is 0.20o. You push the side of…

A: Mass of the block m = 0.40 kg Coefficient of static friction μ = 0.20

Q: A 49.0-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…

A:

Q: A 2.95 kg ball hangs at one end of a rope that is attached to a support on a railroad car. When the…

A:

Q: A block of mass m is placed on an inclined plane which has an adjustable angle with the horizontal.…

A: The free-body diagram of an object on an inclined plane:

Q: 1. An object of mass 10.1 kg is pushed directly from rest along a horizontal surface, a distance of…

A:

Q: A 125° 1000 dyn 500 dyn

A: FBD equations for 1000 dyn block:- Angle between TA and vertical=  90-65 = 25° Angle between TB and…

Q: A 475 gram box is given a push and it then slides up and back down a ramp with a 35.0° incline. The…

A:

Q: 1. A 20 kg moving box sits on a flat surface. The coefficient of static friction between the box and…

A:

Q: For the kinetic friction experiment, derive a formula for the coefficient of kinetic friction µk…

A: There are basically two forces along the incline of the ramp: the component of mg along the incline,…

Q: 4. A box slides down a 34° incline with an acceleration that is precisely one-third what it would…

A: The given plane is inclined at an angle of 34o with the horizontal. A box slides down this plane,…

Q: You are pulling a string with a force of 205N attatched to a heavy box of 38kg across your carpeted…

A:

Q: 1. For a short period of time, the frictional driving force acting on the wheels of the 2200-kg van…

A: We are given with force and mass of the van? From this we can find acceleration of the van. Using…

Q: The figure below shows a block with mass m = 5.1 kg pulled up a surface inclined at an angle of ? =…

A:

Q: A box of weight 100 N is at rest on a floor where us = 0.4. A rope is attached to the box and pulled…

A:

Q: Consider the situation shown where two boxes of mass mi and m2 are placed on a plane tilted at angle…

A: The free-body diagram of the block m2 is shown below: N2 is the normal force on the block m2 due to…

Q: 4. The 5000-N concrete block is adjusted its position using a 5° wedge under the action of force F.…

A: Weight W = 5000N Angle of the wedge α = 5ο The co-efficient of static friction is given by, μ = 0.3…

Q: Two blocks connected by a rope of negligible mass are being dragged by a force at a 24° angle above…

A: Given, mass of block-1, m1=10 kg mass of block-2, m2=26 kg acceleration due to gravity, g=9.8 ms2…

Q: 5. A 50 kg block rests on a rough plane inclined 30° with the horizontal. The coefficient of sliding…

A: Given values: Mass, m=50 kgAngle of inclination, θ=30°Coefficient of friction, μ=0.25

Q: 6. Suppose that, while driving on a dry road, a driver slams on the brakes. Let D be the distance…

A: The drag factor on asphalt road is 0.75 and the braking distance is 210 feet.

Q: 1. A 10 kN block is resting on a horizontal plane with a coefficient of statics friction of 0.92.…

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: iš tó be lowered at constant speed do ma truck 2m high; a. If the coefficient of sliding friction e…

A: Given values:- Weight,(W)=2000 N-----(1) Ramp in long-distance,(s)=4 m ----(2) Height od truck,(h)=2…

Q: A safe weighing 2000N is to be lowered at constant speed down the ramp 4m long from a truck 2m high;…

A: The net force acting on an object is equal to the product of mass and acceleration of the object. If…

Q: 2.A dockworker applies a constant horizontal force of 80.0 N toa block of ice on a smooth horizontal…

A: Force ( F ) = 80 N  Displacement ( s ) = 11 m  Time ( t ) = 5 s  Initial velocity ( u ) = 0 m/s

Q: 4. A body with the mass m is thrown vertically up, from the ground, with the initial velocity Vọ.…

A:

Q: 1. An object (8 kg) was given a kick at the bottom of an incline (20°) and it started with a…

A:

Q: 3A. A 100-N block on a rough 30degrees-incline is acted upon by a force P as shown causing it to…

A: Solution:-Given thatW=100 Na=2 m/s2μk=0.3

Q: A block with mass m slides on the track as shown in the figure. The track is frictionless. a) If the…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!