A box rests on a horizontal surface. You apply a force on the box of F = 100 N at an angle, θ, below the horizontal and it slides at a constant velocity.  The friction force that acts on the box is?

Q: 1. A ball is thrown horizontally from a height of 2 meters with an initial speed of 10 m/s. How far…

A: 3.  We have given, initial speed, u = 20 m/s Angle, θ = 450 We need to resolve speed along two…

Q: A block is sliding down a ramp at an angle of 0 = 29° to the horizontal. Its initial speed is 1.2…

A:

Q: A skier has an initial velocity of 13.0 m/s and skiis up a hill with an angle of 20◦. The skier…

A: Given: The initial velocity of skier is v=13 ms. The angle is ϕ=20°. The skier slides for the…

Q: car weighs 1100kg and can accelerate from 0 to 60m/h in 7.1 seconds on a flat ground

A: Given mass of car m =1100 kg

Q: A block with a mass of 7 kg is placed on an incline. If the static friction coefficient between the…

A: Draw the free-body diagram of the system as:

Q: A snowboarder slides down a 5.0 degree slope at a constant speed. What is the coefficient of kinetic…

A: When the speed is constant, the net force is zero and the acceleration is also zero.

Q: A 12 kg block rests on a 24 degree inclined frictionless surface and is attached by a light string…

A: Given Information:- Mass of the block is m1=12 kg Angle of inclination of the surface is θ=24°…

Q: A block initially at rest slides down a ramp of length L that makes an angle of θ with the…

A: Given information: The angle of inclination of the ramp = θ The length of the ramp = L The…

Q: Suppose a 4.32 kg crates sits in a ramp. The ramp makes a 37.0 degree angle with the horizontal. The…

A: Given: Mass of crates (m) = 4.32 kg Angle of inclination (θ)= 37.0 coefficient of static friction…

Q: Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50-kg ball swings downward…

A: (a) Initially, the 1.50 kg ball swings with given speed from a given height, it will have the…

Q: The coefficients of static and sliding friction for wood on wood are respectively 0.5 and 0.3. If a…

A: Solution:-  Given:  ∙co-efficient of static friction  'fs'=0.5  ∙co-efficient  of sliding friction…

Q: A cart coasts at a constant speed of 18.0m/s down a flat inclined road that makes an angle of 3.1°…

A:

Q: A 7.5 kg block is resting on a ramp that has one end that can be raised or lowered to change the…

A: Given:      mass of the object m= 7.5 kg.     coefficient of static friction μs =0.62.…

Q: A small box of mass ?= 1.20 kg sits on a horizontal frictionless surface. A constant force ?⃗ is…

A:

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

A: The coefficient of kinetic friction between the couch and the floor μk=0.6  The mass of the couch…

Q: A box on a rough floor is pulled with a force of 1000N along a rope that creates an angel 25° above…

A: Given data: Magnitude of pulling force is, F=1000 N. Angle made from horizon is, θ=25∘. Coefficient…

Q: A car is traveling at 48.0 km/h on a flat highway. If the coefficient of friction between road and…

A:

Q: Due to a jaw injury, a patient must wear a strap that produces a net upward force of 5.00 N on his…

A:

Q: Two blocks are connected over a massless, frictionless pulley by a massless string, as shown in the…

A:

Q: crate is at rest on a level surface. If the coefficient of static friction between the crate and the…

A: Given:- The mass of the object m = 40 kg  the coefficient of static friction between the crate and…

Q: Two packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a…

A: Given that: Masses of two crate is m1 = 10 kg m2 = 5 kg Inclination angle = 40 degree

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

A: Answer :  The force required to push must be 78.4N .

Q: A 30 kg sled slides down a 30 degree hill. If the coefficient of friction between the sled and the…

A: The free-body diagram of the sled on the inclined hill is shown below. Here, a is the acceleration,…

Q: A 2 kg box is suspended in the air. Attached to each corner of the box is a rope. All 4 ropes are…

A: SOlution: given that m = 2 kg Each corner of the box attached with 4 ropes are the same length and…

Q: There are nine books in a stack, each with a weight of 5.5 N. The coefficient of friction between…

A: Given that - Weight of each books Coefficient between the table and bottom book.

Q: A box of mass 37 kilograms is being pushed as constant speed in a straight line across the floor by…

A:

Q: A 4.9 kg block is dragged up a hill by a 40 N force pointing uphill.  If the hill is inclined at…

A:

Q: A stubborn, 115 kgkg mule sits down and refuses to move. To drag the mule to the barn, the…

A: Given: The mass of mule is m=115 kg. The maximum force is F=800 N. The static coefficients of…

Q: A horizontal force of 608 N is needed to overcome the force of static friction between a level floor…

A: Horizontal force applied (F) = 608 N  Mass of crate (M) = 225 kg  Coefficient of kinetic friction =…

Q: A 2 kg box is against a vertical wall by a small force (f1=10n) perpendicular to the surface of the…

A:

Q: A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box the…

A: The mass of the box=55kg.The coefficient of static friction =0.30.The coefficient of kinetic…

Q: A heavy box of mass M is found at rest on an inclined loading ramp as indicated in the figure. The…

A:

Q: Two masses are connected by a rigid link as shown in Fig. Q3. The masses are resting on an inclined…

A: Draw the free body diagram as below. The mass of block A, mA=8 kg The mass of block B, mB=4 kg The…

Q: 8.5 kg crate is hung from the ceiling by two wires. Each wire makes an angle of 85° with the…

A: Given data:  Mass (m) = 8.5 kg Angle with ceiling (θ) = 85° Required: The tension in one of the…

Q: a mass is given an initial velocity v0= 3.4ms up a 15 degree incline.  a) if the coefficient of…

A: Given data: Initial velocity of the mass, vo=3.4 m/s Inclined angle, θ=15o Coefficient of kinetics…

Q: Two packing crates of masses m, = 10.0 kg and m, = 7.10 kg are connected by a light string that…

A:

Q: A half-full recycling bin has mass 3.0 kg and is pushed up a 40.0° incline with constant speed under…

A:

Q: A crate of mass m falls off a truck and initially travels at a speed vo​after it hits the ground.…

A:

Q: A block with a mass of 3.44 kg is sliding down an inclined surface. The surface makes an angle of…

A: The expression for the coefficient of kinetic friction by equating the forces along inclined surface…

Q: You are trying to walk up a steep hill. The coefficient of static friction is 0.62. What is the…

A: Given data: -  The coefficient of static friction is μ = 0.62.

Q: The coefficient of static friction between the floor of a truck and a box resting on it is 0.30. The…

A:

Q: You are driving a car at a constant speed of 14.0 m/s along a straight level road. As you approach…

A: The initial velocity of the car is u = 14 m/s. The final velocity of the car is v = 0 m/s. The…

Q: A 42 Kg box is being pushed along a horizontal smooth surface. the pushing force is 18N directed at…

A:

Q: A box rests on a horizontal surface. You apply a force on the box of F = 100 N at an angle, θ, below…

A: Force of F=100 N is applied on the box at an some angle θ. The box which is of mass m moves forward…

Q: Consider a wooden ramp angled 30.1 degrees above horizontal. If a 10.2-kg wooden block is given a…

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

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?”