A 50 g particle that can move along the x-axis experiences the net force Fx=2.0t^2 N where t is in s. The particle is at rest at t = 0 s What is the particle's speed at tt = 2.6 ss?

Q: 100 m 450 45 m 30 m A skier starts at rest on the frictionless slope shown, 100 m above ground…

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Q: A 6.26-kg particle is subject to a net force that varies with position as shown in the figure. The…

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Q: 15. A stone slides down each of the three frictionless ramps, as shown in the figure. For which ramp…

A: From conservation of energy potential energy at top = kinetic energy at bottom As the object is same…

Q: A 100-kg Cabrillo student is launched by a spring (k = 80,000 N/m) that is initially compressed by…

A: The energy of interacting bodies or particles in a closed system remains constant due to…

Q: A 2.27-kg particle is subject to a net force that varies with position as shown in the figure. The…

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Q: A 600 kg roller coa sters starts at A and moves to B and then to C under the influence of gravity…

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Q: A 5.75-kg object passes through the origin attime t = 0 such that its x component of velocity is…

A: Write the given values of the problem- Mass of the object=5.75 kg x-component of velocity=5.00 m/s…

Q: 16 - An object of mass 81 kg is accelerated to 62 m/s. What is the kinetic energy of the object?…

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Q: A h R

A: Given : h = 3.5R m = 5 g = 5 x 10-3 kg

Q: 1. A cart of mass 2.4 kg rolls without friction on the track shown. At point A the cart is moving at…

A: a) by mechanical energy conservation  Kf + Uf = Ki + Ui  (1/2)mvb2 + mg(1.7) = (1/2)m×72 + mg(0.3)…

Q: Vi=25 m/s V2=15 m/s Heeeeee g object moving in the horizontal plane hits a flexible spring with a of…

A: Given: The mass of the object is 300 g. The initial velocity of the object is 25 m/s in the positive…

Q: 42. John is moving a 14 kg box in a Phsyics lab on an approximately frictionless surface. If the box…

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Q: Potential energy (J) A 6.49 kg particle is subjected to only conservative forces, and its potential…

A: A conservative force is force, the work done by which is path independent i.e. work done by a…

Q: 31. A 510-kg roller coaster car starts at a height of 32.0 m. Assuming negligible energy losses to…

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Q: 7. A roller coaster has two vertical loops one after the other. The roller coaster has a speed of…

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Q: A force F (ca – 3.00a²) i acts on a particle as the particle moves along %3D an x axis, with F in…

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Q: 22. A 4.00-kg particle is subject to a net force that varies with V position as shown in Figure…

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Q: the time t1 = 0, an object with a mass m = 4.51 kg passes through the origin with a velocity v1 =…

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Q: A 4.0-kg particle moving along the x-axis is acted upon by the force whose functional form appears…

A: Given: A 4.0-kg particle moving along the x-axis is acted upon by the force whose functional form…

Q: A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at…

A: Mass (m) = 150kg  Height (h) = 30m

Q: 0.8 0.6 0.4 0.2 0.25 0.50 0.75 1.00 Position, x (m) Force, F (N)

A: mass =  1.3 kg speed = 0.35 m/s at 0.27 m

Q: A 20 kg block starts from rest at point A and slides along a frictionless track. What is the speed…

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Q: weightlifter lifts a 70 kg barbell a vertical distance of 1.51 m in a time interval of 2.2 s? (a)…

A: Given Mass m= 70 kg Displacement s = 1.51 m Time taken t = 2.2 Sec

Q: A toy cannon uses a spring to project a 5.33-g soft rubber ball. The spring is originally compressed…

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Q: A 6.89-kg particle is subject to a net force that varies with position as shown in the figure. The…

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Q: has a kinetic energy of 400. joules. The mass of the accelerating a 20.-newton object from rest…

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Q: The 1.1 kgkg physics book in figure is connected by a string to a 550 gg coffee cup. The book is…

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Q: A toy cannon uses a spring to project a 5.35-g soft rubber ball. The spring is originally compressed…

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Q: A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at…

A: Given data The mass of the roller coaster is: m = 150 kg The height of the hill is h = 30 m The…

Q: A force of F=x^2 in Newtons acts on an object of mass m= 2 kg. If the object is at rest at x= 0 when…

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Q: A net external force is applied to a 6.85-kg object that is initially at rest. The net force…

A: Given: Mass, m = 6.85 kgThe graph between force and displacement is given.Find: Speed of the object…

Q: A ball of mass m= 0.38 kg is tied to a massless string of length L=1.2m. The ball is released at…

A: Given Mass of the ball is m=0.38 kg Length of the string is L=1.2 m Angle with the vertical is θ=35°…

Q: At the time t1 = 0, an object with a mass m = 8.01 kg passes through the origin with a velocity v1 =…

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Q: m What is the kinetic energy of a 1400 kg car traveling at 5.3 s ? 7.4 x 10 J 2.0 x 104 J C 7.3 x…

A: Given, Mass of car (m)= 1400kg Speed of car (v)= 5.3 m/s We want to calculate kinetic energy of car

Q: How long will a vacuum cleaner (800 W) runs on 4x10° J of energy? O 13 hrs 30 min 51 sec O 13 hrs 45…

A: Given, Power,P=800 W Energy,E=4×107J (As per option)

Q: 1) 4 m/s A cart starting from rest rolls down a hill and at the bottom has a speed of 4 m/s. If the…

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Q: A ball of mass m= 0.38 kg is tied to a massless string of length L=1.2m. The ball is released at…

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Q: A particle of mass 0.6 kg is acted upon by a force F varies with position x as shown in the figure.…

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Q: A roller coaster has two vertical loops one after the other. The roller coaster has a speed of 7.00…

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Q: A net external force is applied to a 4.51-kg object that is initially at rest. The net force…

A: Given data: Mass (m) = 4.51 kg Initial velocity (v0) = 0 m/s Displacement (s) = 20.0 m…

Q: A 6.12-kg object passes through the origin at time t = 0 such that its x component of velocity is…

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Q: A 150 g particle at x = 0 is moving at 8.00 m/s in the +x-direction. As it moves, it experiences a…

A: Write the provided force equation.

Q: 22. A 4.00-kg particle is subject to a net force that varies with V position as shown in Figure…

A:

Q: A toy cannon uses a spring to project a 5.32-g soft rubber ball. The spring is originally compressed…

A: The ball moves from point A and leaves the barrel of the cannon at point C is shown below .

Q: A single frictionless roller-coaster car of mass m= 200 kg tops the first hill with speed vo = 16.0…

A: mass, m = 200 kg  velocity at A, v = 16 m/s  Height at A, h = 60 m Height at B, h'= h/2 = 30 m

Q: A net external force is applied to a 6.85-kg object that is initially at rest. The net force…

A: Given information: A force versus displacement graph is given The mass of the object, m=6.85 kg The…

Q: 100 m 450 45 m 30 m A skier starts at rest on the frictionless slope shown, 100 m above ground…

A: Given Motion start by skier from 100 m height as shown in the figure. All surfaces are smooth. We…

Q: A roller coaster cart of mass m = 241 kg starts stationary at point A, where h1 = 39.4 m and a while…

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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.