Question

Distance-Time Graph for an Object Moving at Constant Speed Distance Timc 9) A tennis ball was hit and was traveling at a constant speed. The graph above shows the distance the tennis ball traveled from its starting point in 5 seconds. What was the tennis ball's speed? a) 0.5 m/s b) 1 m/s c) 1.5 m/s d) 2 m/s

Answer 1

Let's first make a table of the data that the graph represents.

Time (seconds) Distance (meter)

1 0.5

2 1

3 1.5

4 2

5 2.5

To be able to get the speed of the tennis ball, let's use one of the data and apply the formula in getting the speed.

`\text{Speed = }(Dis\tan ce)/(Time)`

At 1 second, the distance covered is 0.5 meters.

We get,

`\text{Speed = }\frac{0.5\text{ meters}}{1\text{ second}}`
`\text{Speed = 0.5 meter/second}`

Therefore, the speed of the tennis ball is 0.5 meters/second or m/s.

The answer is letter A.