Shown below is a graph of a force applied to a small object as a function of time. If the object has a mass of 5.0 kg and is at rest at t= 0s, how fast is the object moving at t = 4.0 s?

Q: A constant net force acts on an object. The object moves with Select one: а. constant acceleration…

A: A constant net force act on object.

Q: In the figure below, a box of Cheerios (mass mc = 1.6 kg) and a box of Wheaties (mass mw = 2.4 kg)…

A: Mass of the Cheerios box is m = 1.6 kg Mass of the Wheaties box is M = 2.4 kg Friction force acting…

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Q: A roller coaster have a velocity of 9.5 m/s as it goes thru a loop where R = 6.7 meters.  What…

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Q: The diagram shows a block that has forces acting on it.   Which motion will occur from these…

A: Given that:- Mass of block=30kg

Q: If there is no friction, calculate the time it takes for the object to reach its highest point.…

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Q: A body of mass 5 kg is dropped from a height of 100ft with zero velocity. Assuming no air…

A: Solution: Given that m  = 5 kg h  = 100 ft vi = 0 m/s

Q: One of your room-mates (Marie) says that once an object starts moving, that a force isn't needed to…

A: Inertia is the tendency of an object to preserve its state of motion unless an external force is…

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Q: Bank robbers have pushed a 1000 kg safe to a second-story floor-to-ceiling window. They plan to…

A: (a) The robbers lower the safe from the window. Therefore, their initial velocity will be zero. From…

Q: Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 2.0…

A: Considering the motion in the y-direction, Substituting the values and solving gives

Q: Two blocks are connected by a massless, stretchless rope passing over a massless, frictionless…

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Q: A 8-kg object can move along the x axis. It is subjected to a force F in the positive x direction; a…

A: Given data:  Mass of object (m) = 8 kg Force - time graph

Q: Which of the following statement is true about an object that is moving with constant velocity OA…

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Q: As shown in (Figure 1), block AA (mass 2.10 kgkg) rests on a tabletop. It is connected by a…

A: SOlution: Given that mA = 2.1 kg mB = 1.28 kg coef of friction = 0.353

Q: The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.64…

A: Given: The height of the 100 kg object from the ground is  m. The initial velocity of the system is…

Q: A 2.3 kg toy car is accelerated from rest by a net force shown in the graph. The approximate speed…

A: By work energy theroem: Work done by force = gain in kinetic energy of toy car Work done by force =…

Q: A 1000 kg car traveling at a speed of 40 m/s skids to a halt on wet concrete where μk = 0.60. How…

A: Given data: Mass of the car m=1000 kg Initial speed u =40m/s Coefficient of kinetic frictionμk=0.60

Q: In the figure shown, m1= 15 kg. the coefficient of kinetic friction between mı and the surface is…

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Q: Consider a 10 kg block on a table pulled by a force of 20N on a frictionless table. What is the…

A: Given value--- mass = 10 kg . constant pulled force = 20 N. We have to find--- normal force?

Q: Answer the word problem below with given and solution. 1.) Starting from rest, a 3.5 kg object…

A: The equations of motion are v=u+ats=ut+12at2v2=u2+2as

Q: A 5.5 kg block that is initially at rest on a frictionless horizontal surface was pulled with a…

A: Given data:  Mass (m) = 5.5 kg Force (F) = 3.8 N Initial velocity (v0) = 0 m/s Final velocity (vf) =…

Q: Give one example in each of the following cases where a force: (a) Stops a moving body (b) Moves a…

A: A force is a push or a pull on an object. A  force can change the state of motion. A change in…

Q: A box of mass 7.3 kg is slid along the floor. The initial speed of the box is 6 m/s and it comes to…

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Q: A student of mass 63.4 kg, starting at rest, slides down a slide 23.2 find the force of kinetic…

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Q: An object of mass 0.85 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a…

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Q: The graph shows the speed of from breaking at 10 s. a 2360.0 kg car as it slows down after the…

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Q: In a performance test, each of two cars takes 9.6 s to accelerate from rest to 26 m/s. Car A has a…

A: According to Newton's Second Law of Motion, the net force acting on the object is equal to the…

Q: When considering relative velocity, which of the following scenarios would result in a runner being…

A: A tail wind is a wind that flows in the direction of travel of object . A head wind is the wind that…

Q: When the three blocks in the figure are released from rest, they accelerate with a magnitude of 0.5…

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Q: An object of mass 0.69 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a…

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Q: A lump of clay of mass 0.21 kg is dropped from a height of 5.5 m. The clay comes to a full stop…

A: mass of clay is m = 0.21 Kg height from which clay was dropped is h = 5.5 m time taken by the clay…

Q: A block is sliding UP an incline because someone gave it a push a moment ago. The slope of the…

A: given:block is sliding up angle of inclination = 10o friction coefficient = 0.20

Q: A 50 kN truck travelling with a speed of 50 kph hits a lamp post and is brought to rest in 0.1…

A: The expression for the average force is, Favg=m∆v∆t

Q: The force that causes the object to move back toward its equilibrium point is called a(n) none of…

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Q: A constant force of 50 N is acting on a 2.5 kg cart for the total of three seconds (as shown on the…

A: Given data: The applied force F = 50 N. Applied for t = 3 sec.

Q: Which of the following describes a conservative force

A: Option C and E are correct one . A force which do not change total mechanical energy of the system…

Q: Which of the following is TRUE about frictional force? Frictional force always opposes motion O…

A: Let us put a heavy box on the ground. When we push the box with a small force the box will not move.…

Q: A 1500 kg car is pushed with 3000 N of net force from rest to a final velocity of 28 m/s.  How far…

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Q: A lump of clay of mass 0.21 kg is dropped from a height of 7.1 m. The clay comes to a full stop…

A:

Q: An object of mass m¡= 5kg placed on a frictionless, horizontal table is connected to a string that…

A:

Q: If the net force acting on a body is zero

A: In the given question, We have to discuss about ,  if the net force acting on a body is zero then…

Q: An animal is walking forward. There is an applied force from the animal of 25 N to the right, a…

A: Given: The applied force is 25 N in the right direction. The frictional force is 18 N to left. The…

Q: "Is a force that tends to restore the object to the equilibrium position, this is a definition to"…

A: The restoring force is a force which acts to bring a body to its equilibrium position. The restoring…

Q: QUESTI Block A, with a mass of 1 frictionless pulley at the top. The OA.5.9 kg OB. 2.5 kg 0.5 kg

A: Please post the remaining questions separately! Given:- mA= 10 Kg θ= 35° μ= 0.4 For mB to be the…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.