Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
a. A rail road car of mass M is moving without friction on a straight horizontal track with a velocity ct. A man of mass m lands on it normally from a helicopter. What will be the new velocity of the car? ltbgt b. If now the man begins to run on it with speed um with respect to car in a direction opposite to motion of the car, what will be the new velocity of the car?
20
Sep
a. A rail road car of mass M is moving without friction on a straight horizontal track with a velocity ct. A man of mass m lands on it normally from a helicopter. What will be the new velocity of the car? ltbgt b. If now the man begins to run on it with speed [...]
A mud ball at rest explodes into three fragments of masses in the ratio 1: 2: 1. the two equal masses move with velocities 2iˆ+5jˆ−6kˆ and −4iˆ+3jˆ+2kˆ. Find the velocity of the find mass.
20
Sep
A mud ball at rest explodes into three fragments of masses in the ratio 1: 2: 1. the two equal masses move with velocities 2iˆ+5jˆ−6kˆ and −4iˆ+3jˆ+2kˆ. Find the velocity of the find mass. A mud ball at rest explodes into three fragments of masses in the ratio 1: 2: 1. the two equal masses [...]
A shell is fired from a cannon with a speed of 100 m/s at an angle 30∘ with the vertical (y-direction). At the highest point of its trajectory, the shell explodes into two fragments of masses in the ratio 1:2. The lighter fragment moves vertically upwards with an initial speed of 200 m/s. What is the speed of the heavier fragment at the time of explosion?
20
Sep
A shell is fired from a cannon with a speed of 100 m/s at an angle 30∘ with the vertical (y-direction). At the highest point of its trajectory, the shell explodes into two fragments of masses in the ratio 1:2. The lighter fragment moves vertically upwards with an initial speed of 200 m/s. What is [...]
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A shell is fired from a cannon with a speed of 100 m/s at an angle 30∘ with the vertical (y-direction). At the highest point of its trajectory ,
but afterward you have some momentum. Is the principle of conservation of momentum violated in this case ? ,
You are standing perfectly still and then you take a step forward. Before the step your momentum was zero ,
Discuss the possibility of conservation of linear momentum of a block moving on a rough inclined plane if mu = tan theta.
20
Sep
Discuss the possibility of conservation of linear momentum of a block moving on a rough inclined plane if mu = tan theta. Discuss the possibility of conservation of linear momentum of a block moving on a rough inclined plane if mu = tan theta. September 20, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Does the centre of mass of a rocket in free space accelerate ? Explain . Can the speed of a rocket exceed the exhaust speed of the fuel ? Explain.
20
Sep
Does the centre of mass of a rocket in free space accelerate ? Explain . Can the speed of a rocket exceed the exhaust speed of the fuel ? Explain. Does the centre of mass of a rocket in free space accelerate ? Explain . Can the speed of a rocket exceed the exhaust speed [...]
You are standing perfectly still and then you take a step forward. Before the step your momentum was zero, but afterward you have some momentum. Is the principle of conservation of momentum violated in this case ?
20
Sep
You are standing perfectly still and then you take a step forward. Before the step your momentum was zero, but afterward you have some momentum. Is the principle of conservation of momentum violated in this case ? but afterward you have some momentum. Is the principle of conservation of momentum violated in this case ? [...]
A bomb, intially at rest, explodes into serval pieces. (a) Is linear momentum of the system conserved ? (b) Is kinetic energy of the system conserved ? Explain.
20
Sep
A bomb, intially at rest, explodes into serval pieces. (a) Is linear momentum of the system conserved ? (b) Is kinetic energy of the system conserved ? Explain. A bomb explodes into serval pieces. (a) Is linear momentum of the system conserved ? (b) Is kinetic energy of the system conserved ? Explain. intially at [...]
Two blocks of masses `m_(1)` and `m_(2)` interconnect with a spring of stiffness `K`, are kept on as smooth horizontal surface. Find out the ratio of velocity, displacement, kinetic energy and acceleration block with mass `m_(1)` of block with mass `m_(2)`.
20
Sep
Two blocks of masses `m_(1)` and `m_(2)` interconnect with a spring of stiffness `K`, are kept on as smooth horizontal surface. Find out the ratio of velocity, displacement, kinetic energy and acceleration block with mass `m_(1)` of block with mass `m_(2)`. are kept on as smooth horizontal surface. Find out the ratio of velocity displacement [...]
Consider two situations, given figures. Case (I), the spring mass system is constrained in case II, the spring mass system is free to move in the smooth horizontal surface. If m1 is projected with a velocity v0 , can you conserve the momentum of the system in each case ? Explain.
20
Sep
Consider two situations, given figures. Case (I), the spring mass system is constrained in case II, the spring mass system is free to move in the smooth horizontal surface. If m1 is projected with a velocity v0 , can you conserve the momentum of the system in each case ? Explain. can you conserve the [...]
As the text discusses, the conversation of linear momentum is applied only when the system of objects is an isolated system. which of the systems listed below are isolated system?
20
Sep
As the text discusses, the conversation of linear momentum is applied only when the system of objects is an isolated system. which of the systems listed below are isolated system? As the text discusses the conversation of linear momentum is applied only when the system of objects is an isolated system. which of the systems [...]