Arihant Physics by D.C Pandey
A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is:
26
Nov
A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is: A force exerts an impulse I on a particle changing its speed from u to 2u. The applied [...]
three blocks are initially placed as shown .in figure block A has a mass m and initial velocity v to the right. block B with mass m and block C with mass 4m are initially at rest.Neglecting friction all collisions are elastic . find the final velocity of blcok A.
26
Nov
three blocks are initially placed as shown .in figure block A has a mass m and initial velocity v to the right. block B with mass m and block C with mass 4m are initially at rest.Neglecting friction all collisions are elastic . find the final velocity of blcok A. A ball of mass 50g [...]
A stationary body explodes into two fragments of masses m1 and m2. If momentum of one fragment is p, the energy of explosion is
26
Nov
A stationary body explodes into two fragments of masses m1 and m2. If momentum of one fragment is p, the energy of explosion is A stationary body explodes into two fragments of masses m1 and m2. If momentum of one fragment is p the energy of explosion is November 26, 2020 Category: Arihant Physics by [...]
There are hundred identical blocks equally spaced on a frictionless track as shown in the figure . Initially , all the blocks are separate . Each collision is perfectly inelastic . The final velocity will be.
26
Nov
There are hundred identical blocks equally spaced on a frictionless track as shown in the figure . Initially , all the blocks are separate . Each collision is perfectly inelastic . The final velocity will be. all the blocks are separate . Each collision is perfectly inelastic . The final velocity will be. There are [...]
In an arrangement shown , bob A on the left is pulled aside . It is then released and allowed to collide with other bob B which is at rest . A perfectly inelastic collision occurs and the system rises to a height h/4 . The ratio of the masses of the bobs is
26
Nov
In an arrangement shown , bob A on the left is pulled aside . It is then released and allowed to collide with other bob B which is at rest . A perfectly inelastic collision occurs and the system rises to a height h/4 . The ratio of the masses of the bobs is A [...]
A ball of mass 50g is dropped from a height h=10m. It rebounds losing 75 percent of its total mechanical energy. If it remains in contact with the ground for △t=0.01sec, find the impulse of the impact force.
26
Nov
A ball of mass 50g is dropped from a height h=10m. It rebounds losing 75 percent of its total mechanical energy. If it remains in contact with the ground for △t=0.01sec, find the impulse of the impact force. A ball of mass 50g is dropped from a height h=10m. It rebounds losing 75 percent of [...]
A particle starts moving from rest at t=0 with a tangential acceleration of constant magnitude of π m/s2 along a circle of radius 6 m. The value of average acceleration, average velocity and average speed during the first 2√3‾a of motion, are respectively
26
Nov
A particle starts moving from rest at t=0 with a tangential acceleration of constant magnitude of π m/s2 along a circle of radius 6 m. The value of average acceleration, average velocity and average speed during the first 2√3‾a of motion, are respectively A particle starts moving from rest at t=0 with a tangential acceleration [...]
Two identical balls 1 and 2 are tied to two strings as shown in figure. They are rotated about point O. Ball 1 is observed from ball 2, centrifugal force on ball 1 is F1,ball 2 is observed from ball 1 and centrifugal force on ball 2 is F2, then
26
Nov
Two identical balls 1 and 2 are tied to two strings as shown in figure. They are rotated about point O. Ball 1 is observed from ball 2, centrifugal force on ball 1 is F1,ball 2 is observed from ball 1 and centrifugal force on ball 2 is F2, then ball 2 is observed from [...]
The velocity and acceleration vectors of a particle undergoing circular motion are v=2i^m/s and a=2i^+4j^m/s2 respectively at some instant of time. The radius of the circle is
26
Nov
The velocity and acceleration vectors of a particle undergoing circular motion are v=2i^m/s and a=2i^+4j^m/s2 respectively at some instant of time. The radius of the circle is The velocity and acceleration vectors of a particle undergoing circular motion are v=2i^m/s and a=2i^+4j^m/s2 respectively at some instant of time. The radius of the circle is November [...]
A particle of mass m begins to slide down a fixed smooth sphere from the top. What is its tangential acceleration when it breaks off the sphere?
26
Nov
A particle of mass m begins to slide down a fixed smooth sphere from the top. What is its tangential acceleration when it breaks off the sphere? A particle of mass m begins to slide down a fixed smooth sphere from the top. What is its tangential acceleration when it breaks off the sphere? November [...]