Respuesta :
The kinematic relation of the uniform motion we can find for these short exercises the answers are:
1. Δt = 1800 s, 2. Δx = 450 m, 3. v = 2 m / s, 4. Δx = 9000 m
5. Δx = 600 km , 6. Δt = 2 h, 7. a = 1.33 m / s², 8. a = 1.25 m / s²
9. a = - 21 m / s², 10. a = 8.66 m / s²
Kinematics analyzes the movement of bodies, looking for relationships between position, velocity and acceleration
This exercise is a series of short problems
1. The ambulance travel time is requested
The ambulance goes at a constant speed, which is why it is a problem of uniform movement
v = [tex]\frac{\Delta x}{\Delta t}[/tex]
Δt = [tex]\frac{\Delta x}{v}[/tex]
Where v is the average velocity, Δx and Δt are the displacement and time of the body
Δt = 60/120
Δt = 0.5 h
The international system of units (SI) was created to exchange magnitudes safely and if there are errors, in this system the unit of time is the second. Let's reduce to seconds
Δt = 0.5 h (3600 s / 1h)
Δt = 1800 s
2. They ask for the distance traveled by the bee going at constant speed
Δx = v Δt
Δx = 15 30
Δx = 450 m
3. The average speed of the ball is requested
v = [tex]\frac{\Delta x}{\Delta t}[/tex]
v = 10/5
v = 2 m / s
4. The distance traveled by an airplane
Δx = v Δt
Δx = 150 60
Δx = 9000 m
5. The distance traveled by the train
Δx = v ΔDt
Δx = 120 5
Δx = 600 km
6. The time it takes to travel a distance
Δt = [tex]\frac{\Delta x}{v}[/tex]
Δt = 120/60
Δt = 2 h
7. The average acceleration is requested
Average acceleration is defined as the change in velocity per time interval
a = [tex]\frac{\Delta v}{ \Delta t}[/tex]
a = 35-27 / 6
a = 1.33 m / s²
8. The average acceleration of the car
a = 7-2 / 4
a = 1.25 m / s²
9. The average acceleration of the plane
a = 80-185 / 5
a = - 21 m / s²
The negative sign indicates that the acceleration is stopping the plane
10. The average acceleration
a = 27.7 -0 / 3.2
a = 8.66 m / s²
In conclusion with the kinematic relation of the uniform motion we can find for these short exercises the answers are:
1. Δt = 1800 s, 2. Δx = 450 m, 3. v = 2 m / s, 4. Δx = 9000 m
5. Δx = 600 km , 6. Δt = 2 h, 7. a = 1.33 m / s², 8. a = 1.25 m / s²
9. a = - 21 m / s², 10. a = 8.66 m / s²
Learn more about uniform motion here:
https://brainly.com/question/12920060