If a car is moving with constant velocity, then we can say that: Group of answer choices the sum of the external forces acting on the car is zero the only force acting on the car is inertia there are no forces acting on the car none of the above there is a force in the direction that the car is moving

Q: Anna pushes a 4.2-kg cart with 2.4 N of force that starts from rest. Determine the time taken by…

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Q: What kind of friction force is present when two surfaces in contact are not in relative motion?…

A: Solution-: Answer-: 2nd static friction. The friction between two surfaces in contact they are not…

Q: the force acting on the object and its velocity are in the same direction the force acting on the…

A: We need to determine when power involved in moving object is minimum.

Q: An object is always moving in the direction of the net force that acts on the object. True False

A: According to Newton's law of motion, the direction of the net force acting upon a body is the same…

Q: A cardboard box slides along a wood floor with an initial velocity of 15.0 m/s and comes to rest…

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Q: A cardboard box slides along a wood floor with an initial velocity of 15.0 m/s and comes to rest…

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Q: Three different forces act on an object. They are: F1= F2= F3= Find the net firce Fnet on the object…

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Q: Which of the following statements is correct? (Select all that apply.)

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Q: Suppose an object is placed on a ramp at an angle from the horizontal. The direction of the NORMAL…

A: An object is placed at some angle from the horizontal.

Q: girl pushes a cart to the right with a force of 100 N while a boy pushes the cart to the left with a…

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Q: The diagram shows a car moving at a constant speed along a curved road. At point 1, the car is…

A: Given that-The diagram shows a car moving at a constant speed along a curved road. At point 1, the…

Q: Three forces are acting on an object moving with an unchanging velocity v=(i+7j) m/s . Two of the…

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Q: What are the two types of friction? (Select all that apply.) thermal friction kinetic friction…

A: Required : Types of friction.

Q: A force of 50 N acts to the right on a box and a force of 20 N acts to the left on the box. The net…

A: 50 N force acts to the right on a box 20 N force acts to the left on a box

Q: A loaded truck collides with a car causing huge damage to the car. Which of the following is true…

A: It is mentioned that:A loaded truck collides with a car causing huge damage to the car.To choose the…

Q: A car moving with a velocity of 20m/s in the north direction, is acted upon by a pair of balanced…

A: According to Newton's First law a body will continue to move with same velocity or remains in rest…

Q: ? F f ? Mg A block of mass M = 2 kg is pulled across a rough surface at a constant velocity with…

A: Mass of block (m) = 2 kg Applied force (F) = 2 N θ = 30o

Q: Consider the figure below. P=50N Motion 300 10 kg Assume the crate moves with a constant velocity.…

A: Given Mass of crate is m=10 kg Acceleration due to gravity is g=9.80 m/s^2

Q: The Force of friction acting on a block of mass (m) being towed up a ramp tilted at 0° (measured to…

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Q: A 200kg statue has a coefficient of friction with the ground of 0.7. How much horizontal force is…

A: Given:mass M=200kgcoefficient of friction μ=0.7To find:Horizontal force F=??

Q: person is using a rope to lower a 5.0-N bucket into a well with a constant speed of 2.0 m/s. What is…

A: Bucket is moving with constant speed So acceleration is zero .from Newton's 2 Nd law of motion  F =…

Q: Newton's first law of motion states that an object's motion will not change unless* O a force…

A: According to the newton's first law of motion the object remains at rest or keep moving at constant…

Q: A constant net force acts on an object. Which of the following best describes the object's motion?…

A: Required :  Which of the following best describes the object's motion?

Q: A box 'A' rests on a table. A rope tied to the box runs vertically upwards over a pulley and a…

A: Weight of mass: W1 = 80 N Normal force on Box A: N = 15 N

Q: A couple consists of two forces which have different magnitudes and parallel noncollinear lines of…

A: Required : True or False.

Q: Which of the following is true about friction         Static friction is always equal or larger in…

A: Correct option is (a) i e  Static friction is always equal or larger in value than kinetic friction.…

Q: Two blocks, m1=1 kg and m2= 2 kg are connected by a light string which passes over a massless and…

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Q: In the following cases, is the force acting on the ina Are bodies in equilibrium or not? True or…

A: The state of the system when neither the kinetic state nor the internal energy state of the system…

Q: calculate the friction force if the block is at rest

A: Given Data: The forces are given as, F1=10 NF2=20 NF3=5 N The angle of inclination is, θ=37°   The…

Q: A physics student in an elevator, places a 200.0 g mass on an electronic balance.  The balance,…

A: Solution: Given: A physics student in an elevator, places a 200.0 g mass on an electronic balance.…

Q: True/False:  Air resistance is a force that only happens when an object is moving.   True/False:…

A: “Since you have posted multiple questions, we will provide the solution only to the first five…

Q: A box is sliding across a rough horizontal floor while Mary exerts a force on it. The magnitude of…

A: Friction Force: A kinetic friction force on a body only acts when a body is moving. The kinetic…

Q: Two forces act on a 55-kg object. One force has magnitude 65 N directed 59° clockwise from the…

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Q: The tension force in a clothesline can be high because: The poles holding the clothes line are…

A: Tension works in inward direction of acting force, and is equal to acting force ie; T = F = ma  Mass…

Q: String Number Mass Attached (kg) Force Exerted (N)  Direction (°) 1 .25 2.45 30° 2 .25 2.45 120° 3…

A: Given: For string 1: Force = 2.45 N mass = 0.25 kg Direction = 30 degree For string 2: Force = 2.45…

Q: 1- Read the Vectors Section of Chapter 3 of the PHYS 201 text book (Physics by Giancoli). In the…

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Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: A 60 kg person stands on a bathroom scale in an elevator. What does the scale read when the elevator…

A: Given:-  The mass of the object is m = 60 kg. it is on the elevator  Find:-  a) what does the scale…

Q: 10 The Britannic, sister ship to the Titanic, which was launched in February 1914 at Belfast, was…

A: 1m = 3.281 ft 1 ft = 0.305 m

Q: A man with a weight of 500 N (when measured on the scale in his bathroom) stands on a scale in the…

A: A bathroom scale always measures the normal force. If the acceleration is zero, then the normal…

Q: Consider the figure given below. if Coefficient of friction is p then what is the least value of u…

A: According to the Newton's second law,  net force = mass x acceleration  Friction force is given by…

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: