A crate has a mass of 24 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 90 N?

Q: Two cables are pulling on a box, sliding it across the (frictionless) floor.  One cable pulls to the…

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Q: A cheetah accelerates constantly from rest to catch a gazelle. The cheetah covers a distance of 40 m…

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Q: Mary applies a force of 71 N to push a box with an acceleration of 0.52 m/s². When she increases the…

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Q: A student lifts a 1kg object vertically at a velocity of 1 m/s . What is the magnitude of the force…

A: Given Mass of an object is m = 1 kg Acceleration due to gravity is g=9.80 m/s^2

Q: To lift a patient, four nurses grip the sheet on which the patient is lying and lift upward. If each…

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Q: A 300kg weight is held aloft by a rope that passes over a pulley and is then tied down. A 100 kg…

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Q: A snowmobile is pulling a large sled across a snow-covered field. The weight of the sled is 3560 N.…

A: Finding the snowmobile's pulling force under conditions where the sled's weight is 3560 N and its…

Q: A horizontal force of 729 N is needed to overcome the force of static friction between a level floor…

A: Given: The applied force is 729 N. The coefficient of kinetic friction is 0.08. The mass of the…

Q: A bus of mass 760 kg requires 120 m to reach certain velocity value Vf. Ignore friction and drag…

A: SOlution:

Q: The coefficient of static friction between a toboggan and dry snow is 0.50. If the toboggan's mass…

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

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Q: A 500 kg refrigerator is being pushed on a wheeled cart across a carpeted floor. The applied force…

A: Given data:  Mass (m) = 500 kg Applied force (F) = 305 N Frictional force (f) = 45 N Required:…

Q: A force of 40 N stretches a spring 150 cm. What is the spring constant?

A: The force applied to the spring stretches it by distance x than the amount of force is given by,…

Q: A worker applies a constant horizontal force of100 N to a block on a smooth horizontal surface. The…

A: Given Data: The force applied is, F = 100 N. The distance moved is, d = 8 m. The time taken is, t =…

Q: Timmy is done placing his things in a big box and ready to transfer to his new condo unit. The…

A: Given Angle of elevation of the ramp is given as θ=24.6° Mass of the box is m=47.5 kg Coefficient of…

Q: You push a box (mass 3 kg) so that its initial speed is 2.2 m/s. It slides across a rough floor…

A: KE=Wfriction12mv2=μkmgdd=v22μkg

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

A: Answer :  The force required to push must be 78.4N .

Q: The coefficient of kinetic friction between a 1.5-kilogram block and a table is 0.23.  Two students…

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: A 4.9 kg block is dragged up a hill by a 40 N force pointing uphill.  If the hill is inclined at…

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Q: A rescue helicopter lifts a 57.7-kg person straight up by means of a cable. The person has an upward…

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Q: An object with a mass of 4kg lies on a rough plane inclined at 20 degrees to horizontal. A force of…

A: mass =4 kg  angle = 20oF = 35 N a = 2.5 m/s2

Q: A horizontal force of 608 N is needed to overcome the force of static friction between a level floor…

A: Horizontal force applied (F) = 608 N  Mass of crate (M) = 225 kg  Coefficient of kinetic friction =…

Q: A woman pushes an initially stationary 11.3 kg gift up a 15.90 ramp a distance of 7.21 m. If she…

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Q: 2000-kg car initially at rest is held by a friction force that can resist up to 1200 N. If the…

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Q: Three forces act on an object. The first force of 10 N acts East, and the second force of 10 N acts…

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Q: A dockworker applies a constant horizontal force of 75.0 N to a block of ice on a smooth horizontal…

A: The applied constant force, Fapp=75 N The initial velocity of the block of ice, u=0 m/s The distance…

Q: A 3500lb car decelerates from 60mph to 45mph in 8 seconds. Neglecting friction, what is the average…

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Q: A horizontal force of 680N is needed to overcome the force of static friction between a level floor…

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Q: A 1640-kg car is traveling with a speed of 17.6 m/s. What is the magnitude of the horizontal net…

A: Given data:  Mass (m) = 1640 kgInitial velocity (v0) = 17.6 m/sFinal velocity (v) = 0 m/sDistance…

Q: A 123 kg object is pushed on a ramp with an inclination of 25º with a force parallel to the surface.…

A: Given:- The mass of the object is m = 123 kg The inclination of the ramp = 250  The kinetic friction…

Q: A horizontal force of magnitude 157 N is used to push a 6.84-kg object up an inclined plane. The…

A: Normal force is the perpendicular force acting on the body by the surface that is a resultant of a…

Q: force is applied to a 7-kg object to move it with a constant velocity of 6 m/s across a level…

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Q: An empty pail and a 34 kg wooden mass are tied together by a very light string which passes over a…

A: Wooden mass Coefficient of static friction Coefficient of kinetic friction Acceleration due to…

Q: The friction force that a horizontal surface exerts on a 62 kg object is 23 N. If the initial speed…

A: Given data The mass of the object is m = 62 kg. The force applied to the object is F = 23 N. The…

Q: A 46.0-kg crate was pushed 10.4 m across a rough floor without acceleration by two people, with an…

A: Frictional force is the opposing force formed between two surfaces that are trying to move in the…

Q: a sled, with a mass=6.50kg, is sliding down a snow-covered hill that has a slope of 45.0 degrees.…

A: Draw the free-body diagram of the mass as shown velocity.

Q: A sled of mass 97 kg is being pushed up a slope with an applied force of 877 slope is inclined with…

A: Acceleration = F/m

Q: 2 kg box is pressed against a spring which is compressed 5 cm. If the stiffness of spring is 50 N/m…

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Q: a 35 kg block is held in place on an inclined plane by a cable tension, T. if the plane is inclined…

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Q: A block of weight 20 kg is to be lifted to a height of 2.1 m. a) what is the force required to lift…

A: Answer: Given data, Mass of block (m)=20 kg Height to lift (h)=2.1m

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!