Irodov – Problems in General Physics

1.139. A smooth rubber cord of length 1 whose coefficient of elas- ticity is k is suspended by one end from the point^0 (Fig. L3 ...

1.145. A closed chain A of mass m = 0.36 kg is attached to a ver- tical rotating shaft by means of a thread (Fig. 1.37), and rot ...

(^172) F Fig. 1.41. mutually perpendicular and lie in a horizontal plane. Find the total energy of this system in the frame of t ...

1 stops and buggy^2 keeps moving in the same direction, with its ve- locity becoming equal to v. Find the initial velocities of ...

Fig. 1.42. Fig. 1.44. As a result, the threads swerve through an angle 0. Assuming m << M, find: (a) the velocity of the b ...

1.167. Find the increment of the kinetic energy of the closed system comprising two spheres of masses ml and m 2 due to their pe ...

which it experiences an elastic collision simultaneously with the discs B and C. The distance between the centres of the latter ...

Fig. 1.48. from a stationary hopper. The velocity of loading is constant and equal to p, kg/s. Find the time dependence of the v ...

of the vector of the ball's angular momentum relative to the point 0 picked up during half a revolution. 1.189. A ball of mass m ...

1.195. A uniform sphere of mass m and radius R starts rolling without slipping down an inclined plane at an angle a to the hori- ...

1.200. A planet of mass M moves along a circle around the Sun with velocity v = 34.9 km/s (relative to the heliocentric referenc ...

relative to the centre of the Sun (Fig. 1.51). Find the minimum dis- tance by which this body will get to the Sun. 1.211. A part ...

the acceleration w 2 due to the centrifugal force of inertia on the Earth's equator, and the acceleration w 3 caused by the Sun ...

Earth's surface. What additional velocity has to be imparted to the spaceship to overcome the gravitational pull? 1.231. At what ...

the x and y axes. Find the moment N and the arm^1 of the force F relative to the point 0. 1.236. A force Fl = Aj is applied to a ...

Fig. 1.54. disc equals m = 7.3 kg. Find the moment of inertia of such a disc relative to the axis passing through its centre of ...

1.247. In the system shown in Fig. 1.57 the masses of the bodies are known to be m 1 and m 2 , the coefficient of friction betwe ...

(a) the tension of each thread and the angular acceleration of the cylinder; (b) the time dependence of the instantaneous power ...

Fig. 1.63. celeration w„,„„ of the axis of the cylinder rolling down the inclined plane? 1.257. A spool with thread wound on it, ...

Fig. 1.66. R and 2R. The mass of the threads is negligible. Find the accelera- tion of the weight A after the system is set free ...