Which of the following would result in a net external force equal to zero in the vertical direction Group of answer choices pick one answer only When the up forces are smaller than the down forces When the GRF is greater than the Force of Gravity When the Force of Gravity is greater than the GRF No movement or acceleration vertically

Q: A man dives off of a cliff. While he is in the air, how does the magnitude of the force that the…

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Q: Which of the following statements is incorrect?     none of the choices     The gravitational…

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Q: QUESTION 1 An 8-kg block slides 150mm from rest down the 25-degree plane. The spring has a value of…

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Q: Block A of mass 2.0 kg is placed on a 30º incline and is connected to Block B of mass 3.0 kg by a…

A: (i) Kinetic friction  fk = μkNA = 0.30×219×(9.8 m/s2)×cos30° fk= 5.092 N

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: A lamp is hung using a cord. The mass of the lamp is 80-grams. Neglecting the weight of the cord,…

A: Given: Mass of the lamp = 80 grams = 0.080 kg

Q: The unit of drag coefficient depends on the dimensions of the falling object O True False

A: To determine: The correct option.

Q: The coefficient of kinetic friction is equal to the force of kinetic friction divided by Group of…

A: Hello. Since your question has multiple questions, we will solve first question for you. If you want…

Q: A woman exerts a constant horizontal force on a large box. As a result, the box moves across a…

A: The acceleration of an object is only due to the change in velocity, due to the increase in speed,…

Q: A person pushes a 14.5 kg lawn mower at constant speed with a force of 83.5 N directed along the…

A: Given value--- mass of lawn mower = 14.5 kg. Force = 83.5 N. angle = 45 degree . We have to…

Q: A large massive rock is in contact with the Earth. Draw a force diagram for the rock and the Earth.…

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Q: A box filled with appliances rests on a floor. Only gravity and the support force of the floor act…

A: Given, A box rests o floor (a=0) Pull Force , P acts on it not enough to move Let f be frictional…

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: A 23 kg child goes down a straight slide inclined 38° above horizontal. The child is acted on by his…

A: Solution: Consider the free-body diagram of the system as shown below:…

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: Three men pull on ropes attached to the top of a heavy object which is level with the ground Man A…

A: Given Data : height of A, h1 = 6 ft force by A , F1 = 12 lbs. angle made by force of A, θ1 = 45° NE…

Q: Total mass of a train is 25 tonne. This train travels around a horizontal curved track of radius…

A: The horizontal force acting on rail is equal to centrifugal force.  And it is given by,  F=mv2r…

Q: A physics student sits in a chair. The Earth pulls down upon the student's body. Identify the other…

A: According to the Newton's Third law of motion, for every action, there is an equal and opposite…

Q: Which statement about kinetic friction and static friction is true? The force of kinetic friction…

A: When the object is at rest than the static friction works. As the motion of the object starts than…

Q: Object's mass is 15 kg is resting on a table. An external force ( 1O N) act with angle ( 30) on this…

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Q: Taking a break from hiking up a steep hill, a hiker stands still on the incline. What are the forces…

A: The free body diagram of the system is

Q: A loaded sled with a weight of 500 N slides down a frictionless incline with an acceleration of 2.0…

A: Given Weight of the sled is W=500 N Acceleration of the sled is a=2.0 m/s2   We have to find the…

Q: A 20-ton truck collides with a 1500-lb car and causes a lot of damage to the car. During the…

A: Mass of truck = 20 ton Mass of car = 1500 lb

Q: A skate boarder is at the bottom of a circular half pipe with a radius of 6 meters. She has a speed…

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

A: 1) The magnitude of frictional force, f=μkN=μkmg=0.6090 kg9.80 m/s2=529.2 N The direction of…

Q: 6) Consider the four situations shown. All blocks are stationary and have the same weight hanging…

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Q: Ablock weighing W= 20 KN is resting on an inclined plane which makes an angle of (30 degree) to the…

A: Dear student The force due to gravity acts downwards. This can be resolved into two components.

Q: A 40-N crate rests on a rough horizontal floor. A 12-N horizontal force is then applied to it. If…

A: The weight of the box acts in the vertical direction. When the 12N force is applied on the crate,…

Q: A 25 N crate is held at rest on an inclined plane, without friction, by a force parallel to the…

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Q: A cat experiences an upward force of 9N, while it is sleeping inside an elevator. What is the…

A: Given upward force acting on cat is 9N We can solve this problem by applying equilibrium for…

Q: Consider a block of mass 9.81kg on an inclined surface of the coefficient of friction 0.15 and angle…

A: Given: mass of block = 9.81kg coefficient of friction = 0.15 angle of inclination = 30 degrees…

Q: 6 kg 4 kg 25° A 4 kg block suspended in the air is held at rest by a massless string (and massless…

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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!