Speed
Question: A runner travels 180 meters in 20 seconds. What is the runner’s speed?
9m/s
Question: A dog runs at 6 m/s for 18 seconds. How far does it travel?
Answer: 108 m
Question: A student walks 132 meters at 6 m/s. How long does it take?
22s
10 N ← [ BOX ] → 10 N
What is the net force? Balanced or Unbalanced?
0 N; balanced
What does Δ mean?
Delta or chage in
Question: A bicycle travels 336 meters in 28 seconds. What is its speed?
12 m/s
Question: A cyclist moves at 8 m/s for 17 seconds. How far does the cyclist travel?
136 m
Question: A ball rolls 225 meters at 9 m/s. How much time does it take?
25s
10 N ← [ BOX ] → 25 N
What is the net force and direction?
15 N to the right; unbalanced
Which formula should you use if you know distance and time but need to find speed?
v = Δx ÷ Δt
Question: An object travels 360 meters in 24 seconds. What is its speed?
15 m/s
Question: A skateboarder travels at 9 m/s for 13 seconds. Find the distance.
117 m
Question: A runner travels 168 meters at 7 m/s. Find the time.
24s
35 N ← [ BOX ] → 15 N
What is the net force and direction?
20 N to the left; unbalanced
Question: A car travels at 14 m/s for 20 s. What quantity are you solving for, and what is the answer?
Distance; 280 m
Question: A runner travels 672 m in 32 s. What is the runner’s speed?
21m/s
Question: A bus travels at 14 m/s for 22 seconds. Find the distance.
308 m
Question: A bicycle travels 450 m at 18 m/s. How long does it take?
25 seconds
↑ 20 N
|
15 N ← [ BOX ] → 30 N
|
↓ 20 N
What is the net force? Balanced or unbalanced
15 N right; unbalanced overall
Question: A runner travels 360 m in 24 s. A 20 N force pushes right while a 20 N force pushes left. Find the runner’s speed AND the net force.
Speed = 15 m/s; net force = 0 N (balanced)
Question: Runner A travels 600 meters in 30 seconds. Runner B travels 525 meters in 25 seconds. Which runner is faster?
Runner B. Runner A = 20 m/s and Runner B = 21 m/s.
Question: A bus travels at 22 m/s for 25 s. It then travels another 150 m. What total distance did the bus travel?
700 m
Question: A runner travels 600 m. The first 200 m takes 10 seconds, and the remaining 400 m takes 20 seconds. What is the total time, and what is the runner’s speed for the entire 600 m?
30s total; 20m/s
↑ 45 N
|
60 N ← [ BOX ] → 35 N
|
↓ 20 N
What is the net force? Balanced or unbalanced
25 N left and 25 N up; unbalanced overall
Question: A cart travels 450 m in 30 s. At the same time, it has 50 N pushing right and 32 N pushing left. Find the cart’s speed, net force, direction, and whether the forces are balanced or unbalanced.
Speed = 15 m/s; net force = 18 N right; unbalanced