Question Answers

A block of mass 15 kg is resting on a rough inclined plane as shown in Fig. 7.261. The block is tied by a horizontal string which has a tension of 50 N. The coefficient of friction between the surfaces A prismatic block of mass m is kept on a groove. The bottom line of [...]

A box of mass 8 kg is placed on a rough inclined plane of inclination theta. Its downward motion can be prevented by applying an upward pull F and it can be made to slide upwards by applying a force 2 F. Calculate the maximum possible value of mass m0 of block C upto which [...]

Two blocks of masses M1 and M2 are connected with a string which passes over a smooth pulley. The mass M1 is placed on a rough incline plane as shown in Fig. 7.260. The coefficient of friction Two blocks of masses M1 and M2 are connected with a string which passes over a smooth pulley. [...]

A block of mass m1 connected with another block of mass m2 by a light spring of natural length l0 and stiffness k is kept stationary on a rough horizontal surface. The coefficient of friction A block of mass m1 connected with another block of mass m2 by a light spring of natural length l0 [...]

A prismatic block of mass m is kept on a groove. The bottom line of the groove makes an angle theta with horizontal. The angle between the flat surfaces 1 and 2 making the groove is phi. A prismatic block of mass m is kept on a groove. The bottom line of the groove makes [...]

With two hands, you hold a cone motionless upside down, as shown in Fig. 7.257. The mass of the cone is (m = 1 kg ), and the coefficient of static friction between you fingers and cone is and the coefficient of static friction between you fingers and cone is as shown in Fig. 7.257. [...]

Calculate the maximum possible value of mass m0 of block C upto which block A will remain stationary relative to B. If the length of block B is equal to l = 50 cm and mass of block C is m3 = 2 m0, then calculate the time Calculate the maximum possible value of mass [...]

The mass of the wedge shown in Fig. 7.255 is M = 4 kg and that of the block is m = 1 kg. The horizontal surface beneath the wedge is smooth while the coefficient of friction between vertical surface of the wedge and block Each of the three blocks in Fig. 7.248 has a [...]

A block of mass m = 3 kg is resting over a rough horizontal surface having coefficient of friction mu = 1/3. The block is pulled to the right by applying a force F, inclined at angle 37 with the horizontal as shown in Fig. A block of mass m = 3 kg is resting [...]

A cubical block is experiencing three forces, F1 = 20 N acts at angle 45 with horizontal and lies in diagonal plane of the cube. F2 = 30 N acts along y-axis and F3 = 40 N acts in x direction as shown in figure. A cubical block is experiencing three forces F1 = 20 [...]