A frictionless roller-coaster car starts at point A in Fig. 12-14 with speed v0 . What will be the speed of the car (a) at point B, (b) at point C, and (c) at point D? Assume that the car can be considered a particle and that it always remains on the track.

Q: Suppose the potential energy function for a particle moving in 1D is given by U(x) below. Find all…

A: To find the equilibrium points

Q: Is it possible for a system to have negative potential energy? O Yes, since the choice of the zero…

A: Potential energy is the energy due to the position of an object above the surface of earth.

Q: The force F= (yzi + zxj + xyz)/xyz acts on the particle P(x,y,z) which moves in space. (a) Using the…

A: Given data: The force on a particle is: F The potential function associated with force F is: V The…

Q: A 55 kg skateboarder (with the board) wants to just make it to the upper edge of a "half-pipe" with…

A: i) Let the mass of the skateboarder with the board be denoted by m. If the skateboarder is treated…

Q: The potential energy is dependent with height h from the surface of the earth while the kinetic…

A: The mathematical expression of potential energy is : PE = mgh Here, m is the mass of the object, g…

Q: #1. Determine the scalar product of Ả = 6.0î + 4.0ĵ – 2.0k and B = 5.0î – 6.0f – 3.0k. A) 30î + 24ĵ…

A: The scalar product of two vectors A→=Axi^+Ayj^+Azk^ and B→=Bxi^+Byj^+Bzk^ is given by,…

Q: What speed must a 7m ladder have if it is to be able to fit between the simultaneously closed doors…

A: proper length of ladder (Lo) = 7 m length of ladder in garage's frame (L) = 5 m

Q: 75 SSM To form a pendulum, a 0.092 kg ball is attached to one end of a rod of length 0.62 m and…

A: Given that: Mass of the ball,  m=0.092 kgLength of the rod, L=0.62 mMass of the rod, M=0…

Q: L k = 100 N/m ell e 1.0 kg X = -0.5 m x = 0.0 m x = 0.5 m A block of mass 1.0 kg on a horizontal…

A:

Q: as the vertical distance of the The potential energy of an object same object from the surface of…

A:

Q: use a uniform disk 50 cm in radius turning at 300 rev/s as an energy-storage device in a bus. How…

A: Given data:Radius of disk R = 50cm =0.5 m ..............(100cm=1m)Angular speed ω=300rev/s=600π…

Q: A thin, uniform rod has length L and mass M placed a distance a from one end of the rod, along the…

A: …

Q: An object starts from rest at Position 1 on a track and slides to Position 3, At Position 2, the…

A: Here given the diagram with a object starts from position 1 and ends at position 3. Also given that…

Q: Consider the gravitational potential energy of two configurations: the first, when Mars and Earth…

A:

Q: A ball of mass m = 60 g is shot with speed vi= 7.7 m/s into the barrel of a spring gun of mass M =…

A:

Q: •31 SSM www A block is projected up a frictionless inclined plane with initial speed vo = 3.50 m/s.…

A: Initial speed=3.50m/s Angle=32

Q: 7.10 For these velocity distributions in a round pipe, indicate whether the kinetic-energy…

A:

Q: A 10kg block slides from rest down a plane inclined 30 deg with the horizontal. Assuming a…

A: Given: The mass of the object is 10 kg. The angle of the inclination is 30o. The coefficient of…

Q: A uniform thin rod of length 0.310 m and mass 5.74 kg is suspended freely from one end. It is pulled…

A: Given Information:- Length of the rod is l=0.310 kg. Mass of the rod is m=5.74 kg. Initial angular…

Q: A certain rain cloud at an altitude of 1.75 km contains3.20 x 107 kg of water vapor. How long would…

A: Using Work-Energy theorem,

Q: To what height above its lowest point does the mass swing on the other side?

A:

Q: Consider a block of mass 0.270 kg attached to a spring of spring constant 160 N/m. The block is…

A:

Q: A Vehicle of mass M 1910 kg traveling at V = 64 km/hr descends a hill of 1 in 3 (Sine). The Vehicle…

A: Given: mass M= 1910 kg; V = 64 km/hr = 17.77 m/s;; D = 46 m;

Q: The figure shows a thin rod, of length L = 2.30 m and negligible mass, that can pivot about one end…

A:

Q: In the figure, a spring with spring constant k = 150 N/m is at the top of a frictionless incline of…

A:

Q: A pendulum of length L = 1.0 meter and bob of mass m = 1.0 kg is released from rest at an angle  =…

A:

Q: Is it possible for a system to have negative potential energy?     "Yes, as long as the kinetic…

A: Potential energy is the energy stored in the object and it is due to the position of the object.

Q: A 104 kg man is skiing across level ground at a speed of 8.3 m/s when he comes to the small slope…

A: Given that,                     initial velocity(vi)=8.3m/s                     mass of man(m)=104kg…

Q: Consider a block of mass 0.220 kg attached to a spring of spring constant 120 N/m. The block is…

A: m = 0.220 kg K = 120 N/m x1 = 11.2 cm = 0.112 m

Q: How much work is required to stop an electron (m = 9.11 × 10¬31 kg) which is moving with a speed of…

A: mass of electron = m =  9.11 x 10-31kg initial velocity = Vi = 1.10 x 106m/s final velocity = Vf= 0…

Q: The figure shows a thin rod, of length L = 2.20 m and negligible mass, that can pivot about one end…

A:

Q: tion between the block and the plane is μk = 0.13. In the initial position, where the spring is…

A:

Q: A body at rest in a system is capable of doing work if: O the potential energy of the system is…

A: Solution-: When a body is in rest then it has zero kinetic energy.  Now we know that total energy of…

Q: A 2.20 x 102-g particle is released from rest at point A on the inside of a smooth hemispherical…

A: (a) potential energy at A with respect to B UgAB=UgA-UgB=mghA-mghA=mgR-0=2.20×102 g9.8 m/s222.0…

Q: Two moving particles collide and stick together on a smooth horizontal surface. The following…

A: Say we have two particles of mass m1 and m2 having initial velocities u1 and u2 which undergo…

Q: Zero, a hypothetical planet, has a mass of 4.1 x 1023 kg, a radius of 3.0 x 106 m, and no…

A: Write the formula for the gravitational potential energy.

Q: During the lift off of a spacecraft, it gains speed and increases its kinetic energy immediately.…

A: As the planet moves away from earth surface then it's gravitational potential energy continuously…

Q: A block of mass m, resting on a frictionless surface starts moving under the influence of a constant…

A: As we know, s=ut+12at2,  now from given condition initial velocity "u" is equal to zero. therefore,…

Q: A block of mass, m = 0.5 kg is used to compress a spring with a spring con- stant, k released and…

A:

Q: A uniform thin rod of length 0.6 m and mass 6.00 kg is suspended freely from one end. It is pulled…

A: Explanation To solve the problem we will use principle of conservation of energy. First we will find…

Q: *23. ssm A 6200-kg satellite is in a circular earth orbit that has a radius of 3.3 x 10' m. A net…

A: Work energy theorem states that the net work done by the forces on an object equals the change in…

Q: A ball of mass m = 1.85 kg is released from rest at a height h = 80.0 cm above a light vertical…

A:

Q: A 1.80 x 102-g particle is released from rest at point A on the inside of a smooth hemispherical…

A: Given  M =0.180 kg  R=0 .39 m  A) gravitational potential energy  U A= mgR = 0.180×9.8×.39 = 0.6879J…

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.