What is the acceleration in the x direction?
0
How do you determine both the magnitude and direction of a resultant vector after adding them graphically?
1. Measure the length with a ruler. Use scale.
2. Measure the direction with a protractor, give extra meaning by listing the cardinal directions.
A vector has both __________ and _________.
direction; magnitude
What is the resultant magnitude of the following vectors:
15 m North + 16.5 m East
22.3 m at 42.3 degrees N o E.
Why is the acceleration in the y direction -9.81 m/s^2?
Force of Gravity
How do you determine if a projectile motion problem is symmetrical?
If it mentions starting and landing at the same height as launch.
Is displacement a vector or scalar quantity?
Vector
What is the x component of the following vector:
15m/s at 60 degrees W of N
-12.99 m/s
What piece of information, other than ax and ay, is easily filled in when solving a horizontal launch problem?
Viy = 0m/s
How do you find the x and y components of a vector, given the hypotenuse and angle?
1. Determine O, A, H
2. Use SOH CAH TOA
Gravity
1.02s
Velocity always stays constant in which direction: x or y?
X
Imagine you are adding vectors using a component table. Once you sum the values in the x and y, how do you finish the problem?
2. Use pythagorean theorem to find the magnitude and SOHCAHTOA to find the direction.
What is the magnitude of the following vector:
14.9 m E
14.9 m
-12 = -4.905t^2 + 3.14t
1.917s
What is true about the highest point in an object's motion?
Vertical velocity is 0.
Put it into standard form by doing some algebra to equation 3.
What is the name of the form that is needed to use the quadratic equation?
Standard Form
A marble rolls off a table that is 74 cm high. How far away from the table does the marble land if it travels 1.2m in .92s before it leaves the table?
0.51m