. A table tennis ball with a mass of 0.003 kg and a soccer ball with a mass of 0.43 kg are both set in motion at 16 m/s. Calculate and compare the momenta of both balls.

Hi there!

Momentum (p) = m · v

Calculate for each:

Table tennis ball: p = 0.003 kg × 16 m/s = 0.048 kgm/s

Soccer ball: p = 0.43 kg × 16 m/s = 6.88 kgm/s

The momentum of the soccer ball is GREATER THAN the momentum of the table tennis ball.

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the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.