One can solve the problem by using the law of conservation of momentum. The total momentum prior to the collision must be equivalent to the total momentum after the collision, so we have:
m1v1 + m2v2 = m1v1 + m2v2
Here, m1 is 0.4 Kg that is the mass of the ball, u1 is 18 m/s that is the initial velocity of the ball, m2 is 0.2 Kg that is the mass of the bottle, and u2 is 0 that is the initial velocity of the bottle.
v1 is the final velocity of the ball, which is to be determined, and v2 is 25 m/s that is the final velocity of the bottle.
Substituting and rearranging the equation, one can find the final velocity of the ball:
v1 = m1u1 - m2v2 / m1 = (0.4 kg) (18 m/s) - (0.2 Kg) (25 m/s) / 0.4 Kg = 5.5 m/s.
Answer:
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Explanation:
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Frost wedging
Explanation:
Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
Some agents of weathering are wind, water, glacier and gravity.
- In physical weathering, rocks are broken down mechanically into smaller bit.
- Freezing and thawing allows for the propagation of physical weathering.
- Water within cracks will expand when they freeze significantly.
- This will further expand and widen the cracks.
- When the ice thaws the stress is relieved.
- When the process continues on and on over the year, a rock will eventually break down.
- This is common around the temperate and polar regions.
Learn more:
weathering brainly.com/question/876569
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