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3 years ago

15

A school's new pump can fill the swimming pool in 2 hours, and the old pump takes 5 hours. What is the time required in hours to

fill the pool if both pumps are used together? (Enter your answer as mixed number.)

1 answer:

Vilka [71]3 years ago

6 0

.41 hours. 2/24 • 5/24 =10/24 then 10/24= .41 hours or 24.6 minutes

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2 years ago

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Answer:

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Explanation:

In this exercise we see a case of an entirely inellastic collision between the semi truck and the car, which can be described by the following equation derived from Principle of Linear Momentum Conservation: (We assume that velocity oriented northwards is positive)

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Where:

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$v_{S}$ , $v_{C}$ - Initial velocities of the semi truck and the car, measured in meters per second.

$v$ - Final speed of the system after collision, measured in meters per second.

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$v_{S} = \frac{(m_{S}+m_{C})\cdot v - m_{C}\cdot v_{C}}{m_{S}}$

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$v_{S} = v +\frac{m_{C}}{m_{S}}\cdot (v-v_{C})$

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