Concept explainers
The definition
Answer to Problem 1ASA
Centripetal force is the force acting on an object executing rotational motion and it is directed towards the center of the rotational path.
Explanation of Solution
The force which is responsible for keeping any object undergoing rotational motion, in the circular path is called the centripetal force. It is acting towards the center of the circular path and simply it can be stated that the centripetal force is responsible for the rotational motion.
Any object under rotation will have a centripetal force which is provided by the field in which it is moving. For a planet revolving around the sun, the centripetal force is provided by the gravitational force of attraction between the Sun and planet. For an electron revolving around the nucleus of an atom, the centripetal force is provided by the electrostatic force. The centripetal force always directed towards the center of the circular path.
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Chapter 10 Solutions
Physics Laboratory Experiments
- If centripetal force is directed toward the center, why do you feel that you are ‘thrown' away from the center as a car goes around a curve? Explain.arrow_forwardCalculate the centripetal force on the end of a 100 m (radius) wind turbine blade that is rotating at 0.5 rev/s. Assume the mass is 4 kg.arrow_forward1. The Magnitude of the Centripetal Force is given by the equation: Fc = = my2 m = mass; v = velocity; r = radius; Fc = centripetal force A 1000- kg car enters an 80.0m radius curve at 20 m/s. What centripetal force must be supplied by friction so the car does not skid?arrow_forward
- What is difference between an acceleration you applied when you speeding up your car and centripetal acceleration? Give one example of each from your life where you may use them.arrow_forwardCentripetal Force Let's say m and v^2 is constant (meaning equal to 1). Since F = mv^2/r, what is the relationship between force and 1/r? Do they have direct relationship where force increases, 1/r increases? or do they have inverse relationship where force increases, 1/r decreases?arrow_forwardWhat factors determine the magnitude of the centripetal force acting on an object moving in a circular path?arrow_forward
- Calculate the centripetal force on a 2000-kg automobile rounding a curve of 175 m radius at a speed of 50 km/harrow_forward3. The wheel of fortune is 2.6 meters in diameter. A contestant gives the wheel an initial velocity of 2 m/s. Calculate the centripetal acceleration and force that a 8kg mass would have.arrow_forwardThe centripetal force on an object pushes or pulls the object.... a) straight out from the center of rotation b) toward the center of rotation c) toward the center of the earth d) along the line tangent of the circlearrow_forward
- The occupant inside a rotating space habitat of the future feels that she is being pulled by artificial gravity against the outer wall of the habitat (which becomes the “floor”). Explain what is going on in terms of Newton’s laws and centripetal force.arrow_forwardWhat is the centripetal force needed to keep a 3.0 kg mass moving in a circle of radius 0.50 m at a speed of 8.0 m/s? 7.arrow_forwardYou are speeding around a turn of radius 70.0 m at a constant speed of 18.0 m/s. Assuming your mass is 75.0 kg, what is the centripetal force on your body? Express your answer in newtons.arrow_forward
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