Question Answers
Sahay Sir > Question Answers
An artificial satellite is in a circular orbiot at 500 km above the earth’s surface. (i) What is the acceleration of the satel;lite? (ii) Whta is the acceleration due to gravity at any point along the satellite’s path ? Take radius of the earth as 6.5 x 10^6 m.
02
Oct
An artificial satellite is in a circular orbiot at 500 km above the earth’s surface. (i) What is the acceleration of the satel;lite? (ii) Whta is the acceleration due to gravity at any point along the satellite’s path ? Take radius of the earth as 6.5 x 10^6 m. Find the percentage cahnge in the [...]
A block of mass m = 2 kg is resting on a rough inclined plane of inclination 30 as shown in Fig. 7.353. The coefficient of friction between the block and the plane is mu = 0.5. What minimum
02
Oct
A block of mass m = 2 kg is resting on a rough inclined plane of inclination 30 as shown in Fig. 7.353. The coefficient of friction between the block and the plane is mu = 0.5. What minimum A block of mass m = 2 kg is resting on a rough inclined plane of [...]
Block B, of mass mB = 0.5 kg, rests on block A, with mass mA = 1.5 kg, which in turn is on a horizontal tabletop (as shown in Fig. 7.352 ). The coefficient of kinetic friction between block A
02
Oct
Block B, of mass mB = 0.5 kg, rests on block A, with mass mA = 1.5 kg, which in turn is on a horizontal tabletop (as shown in Fig. 7.352 ). The coefficient of kinetic friction between block A block B of mass mB = 0.5 kg rests on block A which in turn [...]
Two satellites of same mass are launched in the same orbit round the earth so as to rotate opposite to each other. They soon collide inelastically and stick together as wreckage. Obtain the total energy of the system before and just after the collision. Describe the subsequent motion of the wreckage.
02
Oct
Two satellites of same mass are launched in the same orbit round the earth so as to rotate opposite to each other. They soon collide inelastically and stick together as wreckage. Obtain the total energy of the system before and just after the collision. Describe the subsequent motion of the wreckage. Find the percentage cahnge [...]
If a satellite is revolving around a planet of mass M in an elliptical orbit of semi-major axis a. Show that the orbital speed of the satellite when it is at a distance r from the focus will be given by v ^ 2 = GM [ 2/r – 1 /a ]
02
Oct
If a satellite is revolving around a planet of mass M in an elliptical orbit of semi-major axis a. Show that the orbital speed of the satellite when it is at a distance r from the focus will be given by v ^ 2 = GM [ 2/r – 1 /a ] Find the percentage [...]
Two satellites move along a circular orbit in the same direction at a small distance from each other. A container has to be thrown from the first satellite on the second a one. When will the container reach the second satellite earlier, if it is thrown in the direction of motion of the first satellite or in the opposite direction? The velocity of the container is small in comparison to that of the satellite.
02
Oct
Two satellites move along a circular orbit in the same direction at a small distance from each other. A container has to be thrown from the first satellite on the second a one. When will the container reach the second satellite earlier, if it is thrown in the direction of motion of the first satellite [...]
A block of mass m is tied with an inextensible light string of length l. One end of the string is fixed at point O. Block is released (from rest) at A. Find the acceleration of particle during its motion
02
Oct
A block of mass m is tied with an inextensible light string of length l. One end of the string is fixed at point O. Block is released (from rest) at A. Find the acceleration of particle during its motion both the pulleys are massless and frictionless. A force F (of any possible magnitude ) [...]
Air friction increses the velocity of the satellite. Explain.
02
Oct
Air friction increses the velocity of the satellite. Explain. Air friction increses the velocity of the satellite. Explain. October 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In column 1, a situation is depicted each of which is in vertical plane. The surfaces are frictionless. Match with appropriate entries in column 2.
02
Oct
In column 1, a situation is depicted each of which is in vertical plane. The surfaces are frictionless. Match with appropriate entries in column 2. a situation is depicted each of which is in vertical plane. The surfaces are frictionless. Match with appropriate entries in column 2. in column 1 October 2, 2020 Category: Uncategorised [...]
A block is placed on a horizontal table which can rotate about its axis. A block is placed at a certain distance from centre as shown in Figure. Table rotates such that particle does not slide.
02
Oct
A block is placed on a horizontal table which can rotate about its axis. A block is placed at a certain distance from centre as shown in Figure. Table rotates such that particle does not slide. A block is placed on a horizontal table which can rotate about its axis. A block is placed at [...]