A block of ice weighing 60 pounds rests on a 30° incline. What force down? A force of (Round to the nearest tenth.) | pounds is necessary to keep the ice from sliding down.

Q: on of 70 m/s, what is the unbalanced force acting on it?

A:

Q: Suppose you have a 120-kg wooden crate resting on a wood floor. If you push with a force of 589 N,…

A: Given data Mass of the crate, m=120 kg Force, F=589 N

Q: A block is pushed up a 30° incline by an applied force as shown. If F = 61 N and M = 3 kg, and μk =…

A:

Q: A block of mass 55.0 kg rests on a slope having an angle of elevationof 25.0°. If pushing downhill…

A: Using Newton’s 2nd law,

Q: A 30 kg box lies stationary on top of a 40 degree inclined plane. If the static friction is 189.172…

A: According to the Newton's second law  Net force = mass x acceleration

Q: A body of mass 2.00 kg is pushed straight upward by a 25.0 N vertical force. What is its…

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Q: A plum bob hangs from the roof of a railway coach. What angle will plum line make with vertical when…

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Q: What is the force necessary for a 1.7 x 103 kg automobile to accelerate forward at 2.0 m/s2?

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Q: A plum bob hangs from the roof of a railway coach. What angle will plum line make with vertical when…

A: When the train is accelerating at 2.3 m/s2 ,the bob experiences equal acceleration but in opposite…

Q: A person of weight 480 N stands on a scale in an elevator. What will the scale be reading when the…

A:

Q: An aircraft gains speed during takeoff due to the constant thrust of its engine. When is the…

A: Given : an aircraft

Q: A car engine of weight 10N hangs from a chain that is linked at ring O to two other chains, one…

A: The force is directly proportional to mass and acceleration. The unit of force is newton(N).…

Q: If F, is 9 N and F, is 6 N, what is the resultant force, F2. B I FB 45° FA

A: Given: FA=9 N, FB=6N

Q: A 23-kg suitcase is pulled with constant speed by a handle at anangle of 25° above the horizontal.…

A:

Q: A 7-kg object is to be given an upward acceleration of 0.4 m/s2 by a rope pulling straight upward on…

A: The net force acting on the object = T-mg     -------(1) where T = tension on the rope mg=weight of…

Q: A car engine of weight 10N hangs from a chain that is linked at ring O to two other chains, one…

A: Given data: The car engine weight is, w=10 N.

Q: What force is needed to pull a 15 kg box up a 25° incline at a rate of 2.0 m/s^2, if the coefficient…

A: Given: The mass (m) of the box is 15 Kg. The angle (θ) made by the inclined plane with the ground is…

Q: Find the tension in an elevator cable if the 1250 kg elevator is ascending with the  upward…

A: The mass of the elevator is m = 1250 kg. The upward acceleration of the elevator is a = 0.180 m/s2.…

Q: tug boats pull a dis abled superlanker. Each tugboat ex Constant Force oF 1:75 X 106 N,one 16° north…

A: Given values:- Force,(F)=1.75 x 106 N ----(1) Angle,(θ)=160 -----(2) Distance covered,(d)=800 m…

Q: If the hanging block is 5 kg, how do you find the tension in each rope?

A: Given data: Mass of block (m) = 5 kg Angle = 60°

Q: An elevator cab that weighs 25.8 kN moves upward. What is the tension in the cable if the cab's…

A: Given value--- weight = 25.8 kN. We have to find --- tension?

Q: Force of gravity? Weight of a block of mass 13.2 kg? take g= 10 m/s²

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Q: What force would be needed to produce a ball of mass 12 kg ? an acceleration of 6 m/s² in

A: Given data as per question mass =  12kg acceleration = 6m/s2

Q: Prob 2: Abarge is pulled by two tugboats if the resultant of the forces exerted by the tugh oats is…

A:

Q: Calculate the force necessary to pull the sled that a woman is riding on with an acceleration of 2…

A:

Q: A 2.5 kg toy car is being pulled by a boy using a string that makes an angle of 20 0 with the…

A:

Q: Calculate the value of the distance traveled by a slider that weighs 100g and receives the force of…

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Q: What is the acceleration of a 11 kg block down a frictionless incline, inclined at theta - 68…

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Q: A block of ice weighing 70 pounds rests on a 32° incline. What force parallel to the incline is…

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Q: An elevator cab that weighs 22.5 kN moves upward. What is the tension in the cable if the cab's…

A:

Q: Find the tension in an elevator cable if the 1 500-kg elevator is descending with an acceleration of…

A:

Q: How much tension must a rope withstand if it is used to accelerate a 1210-kg car horizontally along…

A: Here, the horizontal tension is the force exerted horizontally to the car. The equation for tension…

Q: If a baseball is thrown at 150 m/s² and its mass is 0.50 kg what force is necessary to change its…

A: Introduction :  In this question we are provided with value of mass and acceleration.with these data…

Q: Suppose that the acceleration of an object is zero.  Does this mean that there are no forces acting…

A:

Q: orizontal force of 90N was needed to keeps an object weighing 250N sliding at constant speed 30 m/s…

A: Given values:- Horizontal force,(F)=90 N ----(1) Weight of the object,(W)=250 N ----(2) Constant…

Q: How much tension must a cable withstand if it is used to accelerate a 1200-kg car vertically upward…

A:

Q: 5. FBD 2 represents a hot air balloon which is lifted by a force of 700 N If the basket and its…

A: Force acting on the object is given as product of mass and the acceleration vif the mass . F = ma…

Q: If a child pulls a sled through the snow on a level path with a force of 70 N exerted at an angle of…

A: Given data: Magnitude of pulling force is, F=70 N. Angle made with horizontal is, θ=38∘.

Q: Find the tension in an elevator cable if the 1 700-kg elevator is descending with an acceleration of…

A: Given: The mass of the elevator isk 1700 kg. The acceleration of the elevator is 2.4 m/s2 downward.

Q: If the weight (W) in the cable of a lift is greater than its tension, the lift is Select one: O a.…

A:

Q: If an object of mass 0.8 kg has an acceleration of 70 m/s?, what is the unbalanced force acting on…

A: Given data:  Mass (m) = 0.8 kg Acceleration (a) = 70 m/s2 Required: The unbalanced force (F)

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: A mass of 28 kg is accelerating at 3.2 m/s ^ 2. What is the applied net force ?

A: Given data: Mass (m) = 28 kg Acceleration (a) = 3.2 m/s2 Required: Force (F)

Q: In the force of friction acting on an object that is being pushed is 200N, what force of push is…

A: Introduction: Friction force is defined as the force generated when the two surfaces are in contact…

Q: Determine the net force necessary to give an object with a mass of 2.7 kg an acceleration of 4.1…

A: Given: The mass of the object is 2.7 kg. The acceleration of the object is 4.1 m/s2.

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.