Vectors
Three vector quantities that have appeared in the lessons covered this semester
Displacement, velocity, acceleration, force, tension, normal force, friction
The initial velocity of an object that is in free fall:
0 m/s
What is another name for the horizontal distance that a projectile can reach?
The range of the projectile
The law that states that a force applied to an object receives an equally "strong" force of opposite direction is known as:
The law of action and reaction
What food stand is located right to the left of La Flor de Córdoba at Universidad's Ciberplaza?
Gong Cha
The total angle of a vector that points 30° Southwest
It's 210°
Write the three equations of motion that we can use for an object that is in free fall/vertical throw motion:
1. Vf = Vi - gt
2. Vf^2 = Vi^2 - 2g(yf - yi)
3. yf = yi + vit - 1/2*gt^2
The air time of a projectile going up is always the same air time of a projectile going down. This is true or false?
False
True or false: The normal force ALWAYS, like, ALWAYS ALWAYS points directly upwards.
False!
What is the name of PrepaTec's principal?
Arturo Cuatepotzo
What is the horizontal component of a velocity that is V = 20 m/s 10° Southeast?
It's 19.7 m/s
What is the velocity of a ball just before it hits the ground, if you let it fall from a 16.4 m height?
Vf = -17.94 m/s (or 17.94 m/s going downwards)
A tennis ball cannon launches a ball with an initial velocity of 25.5 m/s at 40° above the horizontal. If the ball comes back to the ground in 3.34 s, what is the maximum horizontal distance the arrow can travel?
The range (or maximum horizontal distance) is 65.27 m
You pile two boxes on the ground. One box has a mass of 20 kg and the other, smaller box has a mass of 5 kg. What is the normal force in this situation?
Name at least two English professors at PrepaTec
Laura León, Ian Capstick, David Ramos, Nicholas (Nick) John, Ma. Elena Aguayo, Vero Sánchez, Benjamin Autran, Adriana Ruiz, Diana Carrillo, Gaby Figueroa, Paola Fierro
Result of the sum of vertical components is 1182. 57 N
A child at the park throws a ball upwards with an estimated velocity of 6.1 m/s. How high does the ball go?
An arrow is launched with an initial velocity of 13.1 m/s at an angle of 42° above the horizontal. What is the horizontal component of the velocity when the arrow is at its highest point?
The horizontal velocity at the highest point of the arrow is 9.74 m/s
Read the problem shown by the professor. What is the value of the force of friction?
Force of friction (absolute value) is 5263.16 N
Where is the pollinator garden located?
Next to the bus parking lot
After finishing a race, you see the path you ran in your phone, showing you two displacements: A = 10 km, 130° and B = 15 km, 40°. What was the magnitude of your displacement A+B?
Magnitude is 18.03 km
You throw a ball upwards 22 m/s. How much time will take to travel a distance of 8 m?
The first time it passes 8 m is t = 0.39 s. The second time it passes the 8 m is t = 4.09 s.
A projectile is launched at a velocity of 16 m/s at 25° above the horizontal. What is the maximum height of the projectile?
The maximum height is 2.33 m
Read the problem shown by the professor. What is the value of the inclined force?
The inclined force is 981 N
A vending machine (between Guich and the microwaves lol)