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Calculate distance, time, and speed using the formula: Distance = Speed × Time.

Physics

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Answers

3 parts
a

480 Km\text{480 Km}

b

7.5 h\text{7.5 h}

c

20 m/s\text{20 m/s}

Step-by-step solution

9 steps

Here are the completed calculations for each part.

Part a· 3 steps

  1. Identify the given values.

    We are given speed and time. We need to find the distance.
    Speed =80 Km/h= 80 \text{ Km/h}
    Time =6 h= 6 \text{ h}

  2. Use the formula for distance.

    The formula relating distance, speed, and time is:

    Distance=Speed×Time\text{Distance} = \text{Speed} \times \text{Time}

  3. Substitute the given values and calculate the distance.

    Distance=80 Km/h×6 h\text{Distance} = 80 \text{ Km/h} \times 6 \text{ h} Distance=480 Km\text{Distance} = 480 \text{ Km}

    The completed value is 480 Km\boxed{\text{480 Km}}.

Part b

7.5 h\text{7.5 h}

  1. Identify the given values.

    We are given distance and speed. We need to find the time.
    Distance =300 Km= 300 \text{ Km}
    Speed =40 Km/h= 40 \text{ Km/h}

  2. Use the formula for time.

    The formula for time is derived from the distance formula:

    Time=DistanceSpeed\text{Time} = \frac{\text{Distance}}{\text{Speed}}

  3. Substitute the given values and calculate the time.

    Time=300 Km40 Km/h\text{Time} = \frac{300 \text{ Km}}{40 \text{ Km/h}} Time=304 h\text{Time} = \frac{30}{4} \text{ h} Time=7.5 h\text{Time} = 7.5 \text{ h}

    The completed value is 7.5 h\boxed{\text{7.5 h}}.

Part c

20 m/s\text{20 m/s}

  1. Identify the given values.

    We are given distance and time. We need to find the speed.
    Distance =1600 m= 1600 \text{ m}
    Time =80 s= 80 \text{ s}

  2. Use the formula for speed.

    The formula for speed is derived from the distance formula:

    Speed=DistanceTime\text{Speed} = \frac{\text{Distance}}{\text{Time}}

  3. Substitute the given values and calculate the speed.

    Speed=1600 m80 s\text{Speed} = \frac{1600 \text{ m}}{80 \text{ s}} Speed=1608 m/s\text{Speed} = \frac{160}{8} \text{ m/s} Speed=20 m/s\text{Speed} = 20 \text{ m/s}

    The completed value is 20 m/s\boxed{\text{20 m/s}}.

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