Question

an object of mass 100kg is accelerated uniformly from a velocity of 4m/ s to 8m/s in 2 seconds . calculate the initial and final momentum of the object.​

Answer 1

P initial=mu

P(i)=100×4=400kg×m/s

P final =mv

P(f)=100×8=800kg×m/s

Answer 2

The initial and final momentum of the object is 400 kg m/s and 800 kg m/s.

The initial momentum of the object

mu=100kg × 4m/s

= 400 kg m/s

The final momentum of the object is

=mv

= 100kg × 8m/s

= 800 kg m/s

• Momentum is a measure of an object's motion and is defined as the product of an object's mass and velocity. In this case, the object has an initial velocity of 4 m/s and a final velocity of 8 m/s, and the mass of the object is 100 kg.

• The initial momentum is calculated by multiplying the initial velocity by the mass of the object, which gives us 400 kg m/s.

• The final momentum is calculated by multiplying the final velocity by the mass of the object, which gives us 800 kg m/s.

• So, the initial momentum represents the motion of the object before it was accelerated, while the final momentum represents the motion of the object after it was accelerated.

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