The speed of a powder rocket is 32 m / s, combustion products weighing 20 g fly out of it, at a speed
| December 6, 2020 | education
The speed of a powder rocket is 32 m / s, combustion products weighing 20 g fly out of it, at a speed of 800 m / s. Find the mass of the rocket.
V1 – 32
m2 – 20
V2 – 800
(m1 + m2) V = m1V1-m2V2
V = 0
m1V1-m2V2 = x * 32-800 * 20 = 32x-1600 = 32x = 1600 = x = 50 g
Answer: 50 grams is the mass of a powder rocket
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