Recent Articles Related To Physics

What if the axis of rotation is passing through the masses ?

Moment of inertia about that axis of rotation (AOR) will be zero.

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Velocity of CoM in vector form.

Formula based questiion.

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Deriving the expression for ratio of speeds after inelastic collision of two similar objects one moving and one at rest.

Restitution coefficient e has value 1 for elsatic collision.

In elastic collsion the total energy remains constant.

Restitution coefficient is the ratio of relative speed of separation after collsion to the relative speed of approach before collision.

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Two rotating bodies have same kinetic energy but different moment of inertia, find the ratio of their angular momentum.

Note the following notations:

J -   angular momentum

K.E.- kinetic energy

I- moment of inertia (MoI)

omega represents angular speed.

1 & 2 are for two cases.(situations)

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Impact on path of the center of mass of a bomb when exploded in air ?

No impact as no "external" force.

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Finding acceleration of center of mass of two masses.

what we need to solve the problem, is value of two masses and their respective acceleration.

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Finding velocity of center of mass in vector form for a system of two masses.

What we need to solve the problem is the respective values of velocities alongwith value of mass.

As mass appeares in numerator and denominator so converting it into kg is not required.

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finding location of center of mass (CoM) for remaining portion of a circular disc.

All measurements has been done from center of original disc denoted by O.

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A stationary bomb exploded in three fragments, two with equal mass and equal speed but in perpendicular directions, finding the speed of third fragment.

What we need is net mass and speed of fragments with eqaul mass.

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Finding position vector(PV) of center of mass when PV for individual masses is given.

In example PV denoted by r1 and r2 is given for m1 and m2.

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