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emmilicious
24.07.2020 •
Physics
During a snowball fight, two snowball with masses of 0.30 kg and 0.70 kg, respectively, are thrown in such a manner that they meet head-on (traveling opposite directions) and combine to form a single mass. The magnitude of initial velocity for each is 10.4 m/s. What is the speed of the 1.0 kg mass immediately after the collision
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Ответ:
10.4 m/s
Explanation:
Given that
mass of the first snowball, m1 = 0.3 kg
mass of the second snowball, m2 = 0.7 kg
Magnitude of initial velocity for both masses, u = 10.4 m/s
To start with, we use the formula of conservation of linear momentum which states that
magnitude of initial momentum is equal to magnitude of final momentum.
m1u1 + m2u2 = V(m1 + m2)
0.3 * 10.4 + 0.7 * 10.4 = V(0.3 + 0.7)
3.12 + 7.28 = V(1)
10.4 = V
The 1 kg mass is an addition Of the 0.3 mass & 0.7 kg mass.
Thus, the speed of the 1 kg mass is 10.4 m/s
Ответ:
you would have to look up the formula and know what time and how fast and how far