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2 years ago

14

Is it possible for a distance versus-time graph to be a vertical line?

2 answers:

Phoenix [80]2 years ago

5 0

Answer:

In a distance-time graph, time is on the horizontal axis, or x-axis, and distance is on the vertical axis, or y-axis. As an object moves, the distance it travels increases with time. ... You can use the steepness, or slope, of a line in a distance-time graph to determine the speed of an object if speed is constant.

Explanation:

Feliz [49]2 years ago

4 0

If time is the x axis and distance is the y axis then yes, in the case that time is going by but distance remains the same.

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A boat takes 3.0 hours to travel 50 km down a river, then 5.4 hours to return. Determine the speed of the water in the river.

Nutka1998 [239]

Answer:

3.7 km/h

Explanation:

Let's call v the proper speed of the boat and v' the speed of the water in the river.

When the boat travels in the direction of the current, the speed of the boat is:

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When the boat travels in the opposite direction, the speed of the boat is

v - v'

And it covers 50 km in 5.4 h, so

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So we have a system of two equations: by solving them simultaneously, we find the value of v and v':

$v+v'=16.7 \\v-v'=9.3$

Subtracting the second equation from the first one we get:

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3 years ago

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frosja888 [35]

Answer:

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2 years ago

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