The magnitude of a momentum of a motorcycle of a mass of 100kg at rest stage is 0kg-m/sec and momentum of a motorcycle is 4000kg-m/sec when it travels with 40m/sec speed.
We know very well that momentum is defined as the quantity of the motion of the body.
Momentum is represented by the product of mass and velocity, or in other words p=mass × velocity
Momentum is called as a vector quantity. It means it has proper magnitude and proper direction.
From momentum, impulse is also calculated.
At rest stage velocity of motorcycle is 0m/sec
Therefore, momentum=100×0=0Kg-m/sec
Now, when motorcycle is moving with speed 40m/sec, then momentum is
=>p=100kg×40m/sec
=>p=4000kg-m/sec
There are various laws in physics which are derived by the conservation of momentum.
Hence, magnitude of momentum are 0kg-m/sec and 4000kg-m/sec.
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