Question

which statement is true about momentum?

Momentum is a vector quantity

Momentum equals the mass times the velocity

The units of momentum of kg-m/s

All of the above

The total momentum of a group of objects remains the same except....

During a collision

If they are acted on by an outside force

If one obkect is more than 10 times the size of the other

All of the above

In doing this experiment, it is important to make sure..

The stationary marbles are touching each other

The marbles are about the same color

The marbles are not touching each other

None of the above

The collision of a number of small marbles with the 4 stationary small marbles...

Will not depend on the number of marbles used

Will produce the same effect independent of the mass of the marbles

Wil produce an outcome dependent on the number and mass of the marbles

Will produce random outcomes nit tied to any known law

In measuring the linear velcoity of the marble, one needs to accurately measure...

Only a predetermined distance

Only a time duration with a stop watch

Both a time and distance traveled

The roll rate of the marble

In determining the momentum of the marble, one needs to measure...

The mass of marble

The distnace traveled

The time duration of the motion

All of the above

Answer 1

The answers are in the images. Page number is mentioned at right top. As per Chegg's answering guidelines, I need to answer the 1st four subparts. However here I have answered all with proper explanation.