Question
Which statement includes a description of velocity? (1 point)
• A marble rolls 30 centimeters away from the table.
• A bicycle moves 8 meters per second.
• A student walks 20 meters down the street.
• A car travels east at 45 kilometers per hour.
• A marble rolls 30 centimeters away from the table.
• A bicycle moves 8 meters per second.
• A student walks 20 meters down the street.
• A car travels east at 45 kilometers per hour.
Answers
Answer
On a position-time graph, which of the following does the value of the slope indicate about the object? (1 point)
change in position
O change in direction
• velocity
O total distance
change in position
O change in direction
• velocity
O total distance
Answer
Every few years, different countries compete in a sailboat race called the America's Cup. The boats sail over the same distance. Besides distance, what else is needed to find out the speed of each boat in the race? (1 point)
• The combined size of the boats in the race.
• The time it takes for each boat to finish the race.
• The skill of the crew of each boat in the race.
• The wind speed during the race.
• The combined size of the boats in the race.
• The time it takes for each boat to finish the race.
• The skill of the crew of each boat in the race.
• The wind speed during the race.
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