Question

1. choose the best answer. jamil kicks the ball into the net at a distance of 18.4 m in 0.46 s. what was the average speed of the ball? 4 m/s 40 m/s 29.8 m/s 8.5 m/s 5) choose the best answer. zeta runs across a football field that is 105 m long in 35 s. what is her speed? m/s 6) choose the best answer. patrick drives his car for 5 hours (h). he travels 450 km. what was the average speed of the car? km/h

Explanation:

Step1: Recall speed formula

The formula for speed is $v=\frac{d}{t}$, where $v$ is speed, $d$ is distance, and $t$ is time.

Step2: Solve for Jamil's ball speed

Given $d = 18.4$ m and $t=0.46$ s. Substitute into the formula: $v=\frac{18.4}{0.46}=40$ m/s.

Step3: Solve for Zeta's speed

Given $d = 105$ m and $t = 35$ s. Using the formula $v=\frac{d}{t}$, we have $v=\frac{105}{35}=3$ m/s.

Step4: Solve for Patrick's car speed

Given $d = 450$ km and $t = 5$ h. Using the formula $v=\frac{d}{t}$, we get $v=\frac{450}{5}=90$ km/h.

Answer:

1. B. 40 m/s
2. 3
3. 90