A horizontal cable pulls a 200-kg cart along a horizontal track. The tension in cable is 500 N. Starting from rest, (a) How long will it take the cart to reach a speed of 8 m/s? (b) How far will it have gone?

Q: A small block is released from rest at the top of a frictionless incline. The distance from the top…

A:

Q: A 53 kg block sliding horizontally across the floor has a coefficient of static friction of us =…

A: Given that:m=53 kgμs=0.42μk=0.26u=4.4 m/sg=9.8 m/s2

Q: By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

A: Given:  v1 = 65 km/h  v2 = 110 km/h

Q: A boat with mass 250 kg, including passengers, has an engine that produces a net horizontal force of…

A: Given Initial velocity = 0 mass of boat with passenger = 250 kg Net horizontal force = 600 N We have…

Q: A box is given a push so it slides with the horizontal floor. If the coefficient of kinetic friction…

A: Given Data Coefficient of kinetic friction is given as μk=0.2 Initial velocity of the box is v0=4…

Q: An elevator cab and its load have a combined mass of 7.8 kg. When the cab, originally moving…

A: Given: Combined mass of elevator and load m = 7.8 kg. Original speed of elevator v = 7.3 m/s.…

Q: A sphere of mass 4.9× 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A:

Q: A sphere of mass 1.9 x 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A: Lets draw the fbd of the given condition in the above question:-

Q: A driver in a car traveling at 23 m/s slams on the brakes and skids to a stop. If the coefficient of…

A: Please see the answer below.

Q: On a rough surface you want to pull a heavy object of 125 kg, if the coefficient of friction is µk =…

A:

Q: Two masses are connected by a string which passes over a pulley with negligible mass and friction.…

A: The equations of motions can be written as : m2g-T = m2aT-m1g sin θ =m1a Here m1  is the larger mass…

Q: An elevator is being lifted up an elevator shaft at a constant speed by a steel cable. All friction…

A: It is given that the elevator is being lifted up with constant speed. Since the elevator is moving…

Q: A sphere of mass 4.8 × 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A: Given Data Mass of the sphere m=4.8×10-4 kg Angle of the sphere with the vertical is θ=17°   Diagram…

Q: A 10 kg block is hanging vertically from a rope. The rope is wrapped around a disk, wherein the…

A:

Q: A person whose weight is 520 N is being pulled up vertically by a rope from the bottom of a cave…

A: Given: The weight of the person is 520 N. The tension in the rope is 569 N. Depth of the cave is…

Q: If Alice pulls the block up 29 meters, how much string must she pull through?

A: Let's assume pulls the right rope by 1 meter first.

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: Question 16, . A 7.0 kg mass is connected to a 1.0kg mass over a pulley. The coefficient of kinetic…

A:

Q: A sphere of mass 3.0 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A:

Q: Given a drag coefficient of 0.42 kg/sec, the magnitude of the drag force (N) on a projectile moving…

A:

Q: What is the magnitude of the force required to stretch a spring that has a constant of 425 N / m and…

A: given ,    K1 = 425 n/m    K2 = 215 n/m

Q: How much tension must a rope withstand if it is used to accelerate a 1910-kg car horizontally along…

A:

Q: A sphere of mass 5.4 x 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A: Let's assume, mass of sphere is m = 5.4x10-4Kgand θ = 45°FBD of sphere, Here,T = Tension in cordF =…

Q: A ball is thrown upward. What is its initial vertical speed? The ac- celeration of gravity is 9.8…

A:

Q: A block -and-tackle pulley hoist is suspended in a warehouse by ropes of lengths 2 m and 3 m. The…

A:

Q: A sphere of mass 5.5 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A: It is given that :m=5.5 x 10-4 kgand θ=19°where, m→mass of sphere

Q: A 8.2 kg mass slides down a flat hill that makes an angle of 32 with the horizontal. If friction is…

A: Given data The mass is m = 8.2 kg The angle with the horizontal is θ = 32°

Q: A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If…

A:

Q: An elevator cab and its load have a combined mass of 7.4 kg. When the cab, originally moving…

A:

Q: A sphere of mass 5.1 x 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A: Visualize the Problem:

Q: Which is a free body diagram for a simply supported beam, spanning twenty feet, and carrying a point…

A: (A) wrong option point load=150 lbslength=15 ft   (B) correct option point load=100 lbslength=20 ft…

Q: A body weighing 50 kg starts from rest and slides down a plane at an angle of 25 degrees with the…

A: Given data: Mass of body, m=50 kg Angle with horizontal, θ=250 Coefficient of friction, μ=0.23 Time…

Q: A crate of mass 11.0 kg is pulled up a rough incline with an initial speed of 1.48 m/s. The pulling…

A: Note : Since question has multiple sub-parts, we can only give solutions to first three sub-parts.…

Q: A 112 kg crate is pushed at constant speed up a frictionless inclined plane of θ = 59 ° with the…

A: Given data, Mass of the crate = 112 kg Angle, θ = 59o

Q: An elevator in a tall building is allowed to reach a maximum speed of 3.5m/s going down. What must…

A: final speed, v = 0  initial speed, u = 3.5 m/s  distance, d = 2.6 m  mass, m = 1450 kg

Q: An elevator cab and its load have a combined mass of 5.6 kg. When the cab, originally moving…

A: Given that, mass, m =5.6 kg initial velocity, u =-4.4 m/s final velocity, v =0 distance, s =-5.5 m

Q: The cable supporting a 2125-kg elevator has a maximum strength of 21,850 N. What maximum upward…

A: Strength, Fmax = 21850 N Mass of the elevator is m = 2125 kg Suppose that upward acceleration is…

Q: A block slides down a rough 300-incline with an acceleration of 2 m/s?. The coefficient of kinetic…

A:

Q: In the figure, a force of magnitude 11.2 N is applied to a block of mass m2=D0.8 kg. The force is…

A: Write the given values of the problem- Force(F) F=11.2 N  Mass(m1)m1=2.6 kgMass(m2)m2=0.8…

Q: A sphere of mass 3.3 x 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A:

Q: An elevator cab and its load have a combined mass of 4.8 kg. When the cab, originally moving…

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

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: