A car moves at speed v across a bridge made in theshape of a circular arc of radius r. (a) Find an expression forthe normal force acting on the car when it is at the top of thearc. (b) At what minimum speed will the normal force becomezero (causing the occupants of the car to seem weightless) ifr = 30.0 m?

Q: How far from the surface of the earth does a rocket travel, before momentarily coming to rest, when…

A: Given:- Initial speed = u = (1/3) of Vesc Escape speed = Vesc = 11.2 km/sec = 11.2x103 m/s Formula:-…

Q: A body is projected vertically from the Earth with a velocity equal to half the escape velocity,…

A: According to the conservation of energy, the total energy at the surface is equal to the total…

Q: A mass (3.5 kg ) is attached to a string (1.7 m) and swung vertically in a circle from the free end…

A: By newton's second law at highest point T+mg=mV2/R

Q: How large must the coefficient of static friction be between the tires and the road , if a car is to…

A:

Q: A car is travelling with a speed of 45km/h on a circular horizontal track of radius 50m. What is the…

A:

Q: Mr. M is now racing on a track that looks like the description in the picture. He laps around this…

A:

Q: Kart has a mass of 450 ky and travel arouund a circular cuve on a flat horizontal track at a radies…

A:

Q: when youre given a mass 500g and its connected to a spring with a length of .2m and its spring force…

A: Given:Mass connected to spring = 500 gm = 0.5 kgSpring force constant, k = 10 Newton/meterSpring…

Q: A 400 kg go cart is driven at ag speed of 36 kilometers hour around a per circular racetrack Of…

A: Hi there! Since there are multiple subparts in the question posted and it is not mentioned what is…

Q: The bob of a 3 m pendulum describes an arc of circle in a vertical plane. If the tension in the cord…

A: Given: The length of the pendulum is r=3 m. The angle is θ=30°. According to question, the…

Q: A fullback is running a sweep around the left side of the line. As he rounds the turn, he is…

A: It is given that,

Q: Answer the follwing questions The bobsled track at the 1994 Olympics contained turn with…

A:

Q: What is the smallest radius R about which an automobile can turnwithout skidding at 100 km/h if μ =…

A: For not skidding, the centripetal force is balanced by the friction force.  μ m g =m v2R where, v is…

Q: An 80N weight is swung in a vertical circle at the end of a cord of 1.20m long. If the velocity of…

A:

Q: A fire acrobat is swinging a fireball atached to a 61cm string in a vertical circle. If the fireball…

A: At the bottom of circle forces acting on fireball wiil be  teansion force ,weight and centripetal…

Q: A car travels on a circular road with radius R and banking angle (theta) chosen so that at the speed…

A:

Q: Two blocks m1=6.2kg and m2= 2.6kg are sliding on a circular track with radius R=5.6m as shown in the…

A:

Q: A rocket travels at a constant speed of 4000 m/s. How long would it have to travel from the surface…

A: In the given question, the speed of rocket (v) = 4000m/s the final weight of the rocket becomes 80%…

Q: When a mass goes in a horizontal circle with a speed v at the end of a string of length L on an…

A: When a mass moves in the circular motion, the centripetal force acts on the mass this force is…

Q: Find the maximum speed of a car traveling on a curved road and still remain in contact with the road…

A: Radius of curvature at point A RA=90 m Radius of curvature at point B RB=100 m0 Mass of car m=2 Mg…

Q: A fire acrobat is swinging a fireball attached to a 61m string in a vertical circle. If the fireball…

A: The given data are listed below with appropriate variables. Here, L denotes the length, v denotes…

Q: Suppose you wish to whirl a pail full of water in a vertical circle at a constant speed without…

A: Given that :r=0.65m+0.17cmg=9.81 m/s2

Q: . A device for training astronauts and jet fighter pilots isdesigned to move the trainee in a…

A: Given data The horizontal circle's radius is: r = 11.0 m The magnitude of the force felt by the…

Q: When a mass goes in a horizontal circle with a speed v at the end of a string of length L on a…

A: as v 2 = 2 v1   T = v^2 * m / L   T will become 4T

Q: Show that the spced of a satellite in orbit close to the Earth is given by (gR)} where gis the…

A:

Q: How long would a day be if the Earth were rotating so fastthat objects at the equator were…

A:

Q: A stone of massm is attached to a string and is rotated in .a vertical circle of radius r at bottom…

A: Given Data : The radius of rotation of the stone is given as r

Q: Suppose all the mass of the Earth were compacted into asmall spherical ball. What radius must the…

A: Gravity on moon is equal to the one sixth of gravity on earth. g' = g / 6 where, g' is the gravity…

Q: The gravitational PE of an object in the Earth's surface is given by, mMg U = -G- derive the…

A: Newton's gravitation law states that each body of a certain mass attracts another body in the…

Q: If you are experiencing a force of 500N against your seatbelt as you turn a corner(radius of the…

A: Given that The force against your seat belt F = 500 N The radius of the curve r = 30 m Mass is your…

Q: A horizontal force of 310 N , is exerted on a 2.5 kg ball as it rotates ( at arm's  length )…

A:

Q: A fighter pilot, whose mass is 75 kg, completes a vertical loop of radius R=388m with a constant…

A:

Q: How can a geostationary satellite above the earth operate stably ? Is it when gravity and universal…

A: Geostationary satellites are kept in orbits such that the gravitational force between the satellite…

Q: A curve in a ro ad has radius of 240 m. IF the road surface is level and on a rain day the coe…

A: Given that, Radius = 240 m Coefficient of static = 0.48

Q: A car of mass m travels around a flat, circular curve of radiusr at the fastest possible speed, v =…

A: When car moves on flat circular track required centripetal force is provided by friction.

Q: show solution A stone is projected with an initial velocity of 20 m/s at 30 deg with the horizontal…

A:

Q: Jules Verne in 1865 proposed sending men to the Moon by  ring a space capsule from a 220m long…

A:

Q: In Jules Verne’s 1865 story with this title, three men went to the moonin a shell fired from a giant…

A: The two objects in the universe attract each other with a gravitational force that is proportional…

Q: - a free ele at rest. WI tion due t

A:

Q: A 51 kg object is experiencing a net force of 250 N while traveling in a circle of radius 1.5 m.…

A: The given values are,

Q: To simulate the apparent weightlessness of space orbit, astronauts are trained in the hold of a…

A: The astronaut who is inside the spacecraft will experience that the spacecraft is moving in the…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.