dashaunpeele
18.11.2020 •
Physics
I just need someone to make these sentences into separate paragraphs:
The book is applying and exerting force down towards the bookshelf as a result of gravity, while the shelf is actually exerting force back up at the book.
When the soccer player kicks the ball, this is applied force. As the ball soars through the air and lands on the ground, the friction ends the movement of the ball.
The compass detects the Earth's natural magnetic field. This force is non contact, since there is no physical touch between magnetic fields and the compass.
When the child is just sitting on the hill on the sled, this is a contact force. The child is pushing down on the sled and the sled pushes back at the child. When he or she slides off down the hill, this contact force is put to a stop due to friction.
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Ответ:
The formula for momentum is p = m*v
The conservation of momentum suggests:
m*vi = m*vf (initial mass times initial velocity = final mass times final velocity or initial momentum = final momentum)
(0.0010)(52.2) = (0.0010 + 3.3)vf
vf = (0.0010)(52.2)/(0.0010 + 3.3) = 0.0522/3.301 ≈ 0.01581 m/s
To the nearest thousandth ≈ .016 m/s