nee The my² m²v² r (A) (B) 20 N centripetal force revolving a body along a circular path of radius 1m, the work done by the centripetal force is (SGD 2019 ) (C) 10 Joule (D) Zero Joule (A) 20 Joule (B) 40 Joule Centripetal force is directed along: (A) tangent to circle (B) radius (C) axis of rotation (D) x-axis (RWP 2019 U

nee The my² m²v² r (A) (B) 20 N centripetal force revolving a body along a circular path of radius 1m, the work done by the centripetal force is (SGD 2019 ) (C) 10 Joule (D) Zero Joule (A) 20 Joule (B) 40 Joule Centripetal force is directed along: (A) tangent to circle (B) radius (C) axis of rotation (D) x-axis (RWP 2019 U

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter8: Central-force Motion

Section: Chapter Questions

Problem 8.22P

See similar textbooks

Similar questions

Check Your Understanding If we send a probe out of the solar system starting form Earth’s surface, do we only have to escape the Sun?
Check Your Understanding You probably recall that, neglecting air resistance, if you throw a projectile straight up, the time ii takes to reach its maximum height equals the time it takes to fall from the maximum height back to the starting height. Suppose you cannot neglect air resistance, as in Example 8.8. Is the time the projectile takes to go up (a) greater than, (b) less than, or (c) equal to the time It takes to come back down? Explain.
Check Your Understanding What potential energy U(x) can you substitute in Equation 8.13 that will result in motion with constant velocity of 2 m/s for a particle of mass 1 kg and mechanical energy 1 J?
A satellite from the Glonass navigation system weighs 7,350 N on the surface of Earth. How much work is donein propelling the satellite from the surface of the Earth to a medium Earth orbit (MEO) of 19,000 km above Earth’ssurface? Use 6,371 km as the radius of Earth. (Express the result with unit N·km rounded to the nearest integer.)
Calculate the valu of the time of flight of K-39 (K39) ion that has a kinetic energy of 12.2 x 10-18 J when the distance of the flight tube is 80 cm long
A team of astronauts is on a mission to land on and explore a large asteroid. In addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. With what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? Assume that the asteroid is approximately spherical, with an average density ? = 2.67 × 106 g/m3 and volume V =1.71 × 1012 m3. Recall that the universal gravitational constant is G = 6.67 × 10-11 (Nm2)/(kg2).
A spaceship with m = 1.00 ✕ 104 kg is in a circular orbit around the Earth, h = 800 km above its surface. The ship's captain fires the engines in a direction tangent to the orbit, and the spaceship assumes an elliptical orbit around the Earth with an apogee of d = 3.00 ✕ 104 km, measured from the Earth's center. How much energy (in J) must be used from the fuel to achieve this orbit? (Assume that all the fuel energy goes into increasing the orbital energy and that the perigee distance is equal to the initial radius.)
The first artificial satellite to orbit the Earth was Sputnik I, launched October 4, 1957. The mass of Sputnik I was 83.5 kg, and its distances from the center of the Earth at apogee and perigee were 7330 km and 6610 km, respectively. Find the difference in gravitational potential energy for Sputnik I as it moved from apogee to perigee?
A lunar module weighs 12 metric tons on the surface of the Earth. How much work is done in propelling the module from the surface of the moon to a height of 50 miles? Consider the radius of the moon to be 1100 miles (from the center of the moon) and its force of gravity to be one-sixth that of Earth. (Round your answer to the nearest integer.)
An artificial satellite orbiting the earth in a very thin atmosphere loses its energygradually due to dissipation against atmospheric resistance, however small. Whythen does its speed increase progressively as it comes closer and closer to the earth?
A 500 kg satellite is put on a geostationary orbit (whose period is 24 hours, so that it is fixed with respect to the Earth) What work was done by the rocket to put this satellite on its orbit? (One does not take into account here the work to make go up the rocket itself, which is very large...!)
Is it possible for the kinetic energy of an object to be negative? Isit possible for the gravitational potential energy of an object to benegative? Explain