When the girl holds the rock with as much force upward as gravity pulls downward, the net force on the rock is _____________________.

Q: why a piece of paper nca be pulled out from under a cup of coffee of the paper is jerked suddenly…

A: Both piece of paper and cup of coffee are initially at rest. When sudden jerk is given to a piece of…

Q: The static coefficient of friction between a 5 kg object and a table is 0.40. Will friction keep the…

A: According to give, Mass of the object (m) = 5kg Static coefficient of friction (μ)= 0.4 Given…

Q: Three blocks of masses m1 = 2 kg, m2 = 4 kg, and m3 = 6 kg are connected by strings on a…

A: Given that ---- Three blocks of masses m1 = 2 kg, m2 = 4 kg, and m3 = 6 kg are connected by strings…

Q: A student pushes a lab cart to the right across a table. As it accelerates, what forces act on the…

A: Lab cart pushed to the right across a table

Q: 20) Two blocks are touching on a horizontal surface. The left block has a mass of 2.0 kg. The right…

A:

Q: objects

A: Given: The net force on the object = 35 N Mass of the object = 35 Kg Acceleration of the object =?

Q: One painter weighs 550 N and the other weighs 650 N. The scaffold weighs 190 N. The tension in one…

A: Let the weights of the two painters be denoted as W1 and W2 and let the weight of the scaffold be…

Q: Two blocks, joined by a string, have masses of 6.0 and 9.0 kg. They rest on a frictionless…

A: Assume m1=6.0 kg and m2=9.0 kg, both blocks are joined by a string, so the acceleration both the…

Q: A man pushes on a brick wall. With what amount of force does the wall push back on the man? a…

A: 1) a man pushes on a brick wall Let the force exerted by the man on the brick wall = F

Q: there is a 65kg student standing on the ground floor of carver how much force is he pushing on the…

A: Given: The mass of the student is 65 kg. Introduction: Newton's third law states that for every…

Q: Three equal weights A, B and C of mass 2 kg each are hanging on a string passing over a fixed…

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Q: Two blocks of mass m = 14.8 kg each are fastened to the ceiling of an elevator, as seen in the…

A: Draw the free-body diagram of the bottom mass:

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

A:

Q: what is the type of force acting on a body due to the acceleration of gravity.

A: The acceleration in which the body falls towards the earth due to gravitational pull of the earth is…

Q: What results when the net force on an object increases?

A:

Q: The figure below shows two blocks with masses 2 kg and 7 kg sliding on two frictionless inclined…

A: Given data: The masses are, m1=2 kgm2=7 kg Inclination of ramp is θ=35°.

Q: A sign saying Physics hung at the entrance of a classroom. The mass of the board is 60 kg. Determine…

A:

Q: A person is pushing an object across a room. What forces are acting on the object?

A: contact force: applied due to contact between surfaces ( normal reaction and friction )  Weight:…

Q: Is normal force always equal to weight of an object

A:

Q: Your hand needs to exert an upward force of 5 lb to hold up a bag of sugar weighing 5 lb. Which of…

A: Your hand needs to exert an upward force of 5 lb to hold up a bag of sugar weighing 5 lb. To find =…

Q: A dog is pulling on his lead at an angle of 57 degrees with a force of 50 Newtons. What is the force…

A: Recall       Fx=Fcosθ      Fy=Fsinθ

Q: A 5.0-kg and a 10.0-kg box are touching each other. A 45.0-N horizontal force is applied to the…

A: Given, Mass of boxes is Force acting on is

Q: It has a force of 20N and an acceleration of 5.4 km / h2. Calculate: The weight

A:

Q: A person weighs a 5 kg fish on an elevator. If the elevator moves with an acceleration ay = ±2.00…

A: mass of fish = 5kg acceleration of elevator = 2.00 m/s^2 elevator goes up

Q: A pulley is made out of a thread that connects two masses that hang straight down. Determine the…

A: Given value--- mass m1 = 82.2 kg. mass m2 = 73.8 kg. We have to find--- tension in the string?

Q: During a hockey game Petite Pierre pushes on Big Bob during a scuffle. Select all statements that…

A:

Q: 10. A sign that says Physics hangs at the entrance of a classroom. The mass of the board is 60 kg.…

A:

Q: what is the force of friction acting on the 8.0 KG box if it is moving at a constant speed down the…

A:

Q: What is it that deals with the relationships between the forces acting on the body and the resulting…

A: Newton's second law of motion describes the relationship between force and acceleration. They are…

Q: A brass ball is hanging from a stiff cotton thread. Draw a neat- labelled diagram showing the forces…

A: The free body diagram is shown as,,

Q: A = 106gwt @30° and B = 156gwt @135° The unit gwt, is a convenient unit whenever the only forces…

A: Given values -

Q: An object moving down on an inclined plane will experience Select one: O liding Friction Both static…

A:

Q: The picture includes the following objects • Cyan wagon with red edges and frictionless wheels •…

A:

Q: 131. A constant horizontal force of 5.2 newtons is applied to a wooden block to slide it at constant…

A: since the wooden block is sliding with constant speed, the only force acting there is the frictional…

Q: The vertical component of a force 10 N acting in third quadrant with 30° to the horizontal axis is O…

A: Given data:  Force (F) = 10 N Acting in third quadrant Angle (θ) = 30° with the horizontal axis

Q: A block of mass 5.0 kg is acted upon by a single force, producing an acceleration of 2.0 m/s². The…

A: Given : Mass of the block, m = 5 kg Acceleration due to the force acted, a = 2 m/s2

Q: Black Forest. A black forest cake on a plate rests on a top of a table. Which of the following is…

A: Given: Black forest cake on a plate, and plate rests on the top of the table. Asked: Reaction force…

Q: WEIGHT, FRICTION, AND TENSION ARE ALL FORCES. DESCRIBE THE DISTINCTIVE CHARACTERISTICS OF EACH.

A: A force is defined as the action of push or pull acting upon an object. It changes the state of rest…

Q: Calculate the force you exert when you are standing on the ground (1 lb = 0.454 kg). Is the force…

A: Let us suppose the mass of person is 70 kg

Q: In the absence of a net force, an object can be

A: When the net force on an object is zero, it does not mean that there is no external acting on the…

Q: Each of these boxes is pulled by the same force F to the left. All boxes have the same mass and…

A:

Q: Bethany, who weighs 560 N, lies in a hammock suspended by ropes tied to two trees. One rope makes an…

A:

Q: A wrecking ball weighing 9.9 kilograms hangs from a uniform heavy-duty chain having a mass of 19.8…

A:

Q: the net force applied to an object increases, its acceleration

A: According to Newton's 2nd law of motion force acting on an object of mass m having acceleration a is…

Q: plain how an auto mechanic's car lift is able to provide the force needed to lift an incredibly…

A:

Q: The two types of forces that exist are forces that touch the object, and forces that act without…

A: Force is something that creat motion in the body. Gravitational force, attraction force , electrical…