SI Units
What is the unit for time?
seconds (s)
Convert 3.5km into meters
3,500 m
In a right triangle, if you know the opposite side and the hypotenuse, what trig function should you use to get the angle?
Sine
A= 15x + 6y
B= 3x - 5y
Write out A - B
12x + 11y
An object moves at a constant velocity of 5 m/s for 4 seconds. How far does it travel?
20m
meters (m)
Convert 72 km/h into m/s
20m/s
A right triangle has an adjacent side of 6 m and a hypotenuse of 10 m. Find the angle θ.
53.13o
A= 3x + 4y
B= 2x - y
Write out A + B and find the magnitude.
5x + 3y
5.83
A student walks 30 m east in 10 seconds. What is their average velocity?
3.0 m/s east
meters per second (m/s)
A table is 2.0m long and 0.75m wide. What is the area of the table in cm2
15,000cm2
A force has a magnitude of 20 N and makes an angle of 30° above the horizontal. What is the horizontal component of the force?
17.32o
A= 4x - y
B= 2x + 3y
Write out 3A + B and find the magnitude.
14x
14
A car starts from rest and accelerates at 4 m/s² for 5 seconds. What is its final velocity?
20 m/s
What is the unit for acceleration?
meters per second squared (m/s2)
A car is traveling at 55mph. What is it's speed in m/s?
1mile=1609m
24.6m/s
A 50 N force acts at 40° above the +x-axis. Find both its x- and y-components.
A = 6x + 8y
find the magnitude and angle as measured counterclockwise from the +x axis
|A|= 10
θ≈53.1o
A skateboarder starts from rest and accelerates at 2.0 m/s² for 6.0 seconds. How far does the skateboarder travel?
36 m
What is the unit for mass?
kilograms (kg)
A runner travels at 8.5m/s. How far will they travel in 2.5 minutes, expressed in km?
1.275km
A vector has components Ax=12m, and Ay=16m. What angle does the vector make with the +x-axis?
53.1o
A + B - C = 0
A = 4x -3y
B = -2x + 7y
Find C, its magnitude, and its angle
C = 2x + 4y
|C| = 4.47
θ≈63.4∘
A car is traveling at 10 m/s when the driver begins accelerating at 3.0 m/s². After traveling 50 m, what is the car's final velocity?
20 m/s