A child is playing with a car track, which has a loop of radius 14cm as shown in the figure, when the car is at the highest pointof the loop ithas a speed of 5.8566 m / s, if the car has a massi26 g, then we can say that the value of the normal force.exerted by the track on the car at that point is:a) N=6.6248 Nb) N=1.0192 Nc) N=6.1152 Nd) N=1.7836 N

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Answered: A child is playing with a car track,…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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MY NOTES ASK YOUR TEACHER Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1800-kg car passes over a hump in a roadway that follows the arc of a circle of radius 20.6 m as in the figure below. (a) If the car travels at 22.0 km/h what force does the road exert on the car as the car passes the highest point of the hump? magnitude N. direction --Select-v (b) What is the maximum speed the car can have without losing contact with the road as it passes this highest point? km/h
Two cars with no brakes or motor, and with no axle friction or body drag, are allowed to roll down a hill under the sole power of their weight (gravity). Both cars have the same total mass and both start at rest at the top of the hill. Car A descends a 50ft-tall hill that has a 5-degree incline; Car B descends a 50ft-tall hill that has a 25-degree incline. Both descend to the bottom of their respective hill, at which time their speed are compared. Which one of the following statements is correct? A. Car A and Car B will travel at the same speedB. Car A will travel faster than Car BC. Car A will travel slower than Car BD. None of the above is true
Planetary motion. A planet or asteroid orbits the Sun in an elliptical path'. The diagram shows two points of interest: point P, the perihelion, where the planet is nearest to the Sun, and the far point, or aphelion, at point A. At these two points (and only these two points), the velocity v of the planet is perpendicular to the corresponding "radius" vector ř, from the Sun to the planet. An arbitrary point Q is also shown. P A
2.) A 200-gram ball is whirled around in a horizontal circle at the end of a string 1000cm long. What is the highest speed the object can have I'd the string has a breaking point of 4N 3.) A 1000-g ball is tied to a strong 60cm long and is whirled in a vertical circle at 1 revolution per second. If the tension at the highest point is zero, what is the speed of the body at the highest point? 4.) A body is moving along a circular path of radius 2.86m. If the centripetal force on the body is three times it weight, find period of the motion. 5. A curve along the highway is to be designed for cars moving at 100kilometers per hour. Find the angle of banking I the radius of.the curve is 200m.
A statue is crated and moved for cleaning. The mass mm of the statue and crate is 150kg150kg. As the statue slides down a ramp inclined at an angle θ=40∘θ=40∘, the curator pushes up, parallel to the ramp's surface, so that the crate does not accelerate. The statue slides a distance d=4.0m d=4.0m down the ramp, as shown in the figure, and the coefficient of kinetic friction μkμk between the crate and the ramp is 0.580.58. Assume that the positive direction is down the ramp. a) Calculate the work WgravWgrav done by the gravitational force. (b) Calculate the work WfrictionWfriction done by the friction force. (c) Calculate the work WcuratorWcurator done by the curator. (d) Calculate the work WnormalWnormal done by the normal force.
A roller-coaster vehicle has a mass of 505 kg when fully loaded with passengers (see figure). (a) If the vehicle has a speed of 15.0 m/s at point A, what is the force (in N) of the track on the vehicle at this point? N (b) What is the maximum speed (in m/s) the vehicle can have at point B in order for gravity to hold it on the track? m/s
8
A roller-coaster vehicle has a mass of 565 kg when fully loaded with passengers (see figure). 10 m 15 m (a) If the vehicle has a speed of 24.0 m/s at point O, what is the force (in N) of the track on the vehicle at this point? (b) What is the maximum speed (in m/s) the vehicle can have at point ® in order for gravity to hold it on the track? m/s
A roller-coaster car has a mass of 1120 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 21 m, its speed is not changing. (a) At the top of the hill, what is the normal force (using the negative sign for the downward direction) FN on the car from the track if the car's speed is v = 7.6 m/s? (b) What is EN if v = 19 m/s? Use g=9.81 m/s².
An m= 1,652 kg car passes over a hump with a velocity of v =6.8 m/s in a road that follows the arc of a circle of radius r =90 m. Find the normal force that the road exert on the car as the car passes the highest point of the hump in units of N (Newton). Take g=9.8 m/s2, and round off your result to 1 decimal place.
For the normal force in the drawing to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 2.23 m and that the driver goes past point 1 at the bottom with a speed of 24.0 m/s. What speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom?
A car of mass 1800 kilograms passes over a hill that has an arc with a radius of 42 meters. If the car is moving with a speed of 16 meters / second at the top of the hill, what g-force does the car experience?

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