Maths Flashcards
(24 cards)
Sin of an angle?
Opposite divided by Hypotenuse
Cos of an angle?
Adjacent divided by Hypotenuse
Tan of an angle?
Opposite divided by Adjacent
Vertical component of a right-angled triangle?
Opposite
Horizontal component of a right-angled triangle?
Adjacent
Vertical component formula?
velocity sin (angle)
Horizontal component formula?
velocity cos (angle)
Hypotenuse formula?
A squared + B squared = C squared
Formula of a straight line?
Y = MX + C
What does ‘M’ mean in the formula of a straight line?
The gradient of a line
Formula for the gradient of a line?
M = increase in Y divided by increase in X
What does ‘C’ mean in the formula of a straight line?
C = Y intercept
What is a Y intercept?
Where the line crosses the Y axis
When does acceleration = zero in a velocity vs time graph?
At the highest and lowest peaks of the line
When does maximum negative acceleration occur in a velocity vs time graph?
When the line is sloping downward and towards the right
What does acceleration equate to in a velocity vs time graph?
The gradient
What is the top angle of a right angled triangle? Sin/cos/tan?
Sin
What is the right angle of a right angled triangle? Sin/cos/tan?
Tan
What is the opposite angle to the right angle of a right angled triangle? Sin/cos/tan?
Cos
How many meters are in a kilometre?
1000
How many seconds are in an hour?
3600
How do you turn km/hr into m/s?
1000(km) divided by 3600
vGRF = 1800{1+(rs/3)} what rs produces a vGRF of 4500N?
- Rearrange the equation so rs is on its own
- What you do to one side of the equation you must do to the other side of the equation
- rs = 3{(vGRF/1800) - 1}
- rs = 3{(4500/1800) - 1} = 3{2.5 - 1} = 3{1.5} = 4.5
Formula for speed?
v = d/t
