Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 3.0×10−2m and a thickness of about 7.0×10−3m The shear modulus of cartilage is 1.2×107N/m2 Suppose a shearing force of magnitude 11 N is applied parallel to the top surface of the disc while the bottom surface remains fixed in place . How far does the top surface move relative to the bottom surface?
28
Aug
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 3.0×10−2m and a thickness of about 7.0×10−3m The shear modulus of cartilage is 1.2×107N/m2 Suppose a shearing force of magnitude 11 N is applied parallel to the top surface of the disc [...]
A stone tied to an inextensible string of length l = 1 m is kept horizontal. If it is released, find the angular speed of the stone when the string makes an angle theta = 30 with horizontal.
28
Aug
A stone tied to an inextensible string of length l = 1 m is kept horizontal. If it is released, find the angular speed of the stone when the string makes an angle theta = 30 with horizontal. A stone tied to an inextensible string of length l = 1 m is kept horizontal. If [...]
A block of soft butter is resting on a plate. Figure gives the dimensions of the butter block. You are bored, impatiently waiting for dinner, and push it tangentially against the top surface with a force F = 0.45 N
28
Aug
A block of soft butter is resting on a plate. Figure gives the dimensions of the butter block. You are bored, impatiently waiting for dinner, and push it tangentially against the top surface with a force F = 0.45 N A block of soft butter is resting on a plate. Figure gives the dimensions of [...]
Two particles A and B move on a circle Initially, particles A and B are diagonally opposite to each other. Particle A moves with angular velocity pi rad s^-1 and angular acceleration pi/2 rad/s^2 and particle B moves with constant angular velocity 2 pi rad/s^2. Find the time after which both the particles A and B will collide.
28
Aug
Two particles A and B move on a circle Initially, particles A and B are diagonally opposite to each other. Particle A moves with angular velocity pi rad s^-1 and angular acceleration pi/2 rad/s^2 and particle B moves with constant angular velocity 2 pi rad/s^2. Find the time after which both the particles A and [...]
A fan is rotating with angular velocity 100 rev/s. Then is switched off. It takes 5 min to stop. (a) Find the total number of revolution made before the fan stops. (assume uniform angular retardation). (b) Find the value of angular retardation. ( c) Find the average angular velocity during this interval.
28
Aug
A fan is rotating with angular velocity 100 rev/s. Then is switched off. It takes 5 min to stop. (a) Find the total number of revolution made before the fan stops. (assume uniform angular retardation). (b) Find the value of angular retardation. ( c) Find the average angular velocity during this interval. A particle moves [...]
consider a column made up to two different materials. figure shows the inner section of arrea A1 having young modulus y1 and the outer section of area A2 having young modulus y2 . a compressive force F acts on this column . find the load supported by inner and outer section of the column.
28
Aug
consider a column made up to two different materials. figure shows the inner section of arrea A1 having young modulus y1 and the outer section of area A2 having young modulus y2 . a compressive force F acts on this column . find the load supported by inner and outer section of the column. a [...]
A particle moves in a circular path such that its speed 1v varies with distance s as v = sqrt(s), where prop is a positive constant. Find the acceleration of the particle after traversing a distance s.
28
Aug
A particle moves in a circular path such that its speed 1v varies with distance s as v = sqrt(s), where prop is a positive constant. Find the acceleration of the particle after traversing a distance s. A particle moves in a circular path such that its speed 1v varies with distance s as v [...]
The tangential acceleration of a particle moving in a circular path of radius 5 cm is 2 m/s^2 . The angular velocity of the particle increases from 10 rads/s to 20 rads/s during some time. Find a. this duration of time and b. the number of revolutions completed during this time.
28
Aug
The tangential acceleration of a particle moving in a circular path of radius 5 cm is 2 m/s^2 . The angular velocity of the particle increases from 10 rads/s to 20 rads/s during some time. Find a. this duration of time and b. the number of revolutions completed during this time. A particle moves in [...]
A particle moves on a circle of radius r with centripetal acceleration as function of time as a_c = k^2 r t^2, where k is a positive constant. Find the following quantities as function of time at an instant : (a) The speed of the particle (b) The tangential acceleration of the particle ( c) The resultant acceleration, and (d) Angle made by the resultant with tangential direction.
28
Aug
A particle moves on a circle of radius r with centripetal acceleration as function of time as a_c = k^2 r t^2, where k is a positive constant. Find the following quantities as function of time at an instant : (a) The speed of the particle (b) The tangential acceleration of the particle ( c) [...]
A solid sphere of mass m=2kg and specific gravity s=0.5 is held stationary relative to a tank filled with water. The tank is accelerating upward with acceleration 2m/s2. Calculate (a) Tension in the thread connected between the sphere and the bottom of the tank. (b) If the thread snaps, calculate the acceleration of sphere with respect to the tank. (Density of water =1000kgm−3,g=10ms−2).
28
Aug
A solid sphere of mass m=2kg and specific gravity s=0.5 is held stationary relative to a tank filled with water. The tank is accelerating upward with acceleration 2m/s2. Calculate (a) Tension in the thread connected between the sphere and the bottom of the tank. (b) If the thread snaps, calculate the acceleration of sphere with [...]