Linear Kinematics Flashcards
1
Q
Definition of Distance
A
the total length travelled from one point to another
2
Q
Definition of Displacement
A
shortest distance from initial point to final point
3
Q
Definition of Velocity
A
The rate of change of displacement
4
Q
Definition of Acceleration
A
The rate of change of velocity
5
Q
Formula velocity, v
A
V = S / T
6
Q
Formula acceleration, a
A
A = (V-U) / T
7
Q
Equations of Kinematics
A
V = U + AT
V² = U² + 2AS
S = UT + 1/2AT²
S = 1/2(U+V)T
8
Q
Free fall acceleration
A
A = -9.81 m/s²
9
Q
How to find velocity (v) in displacement-time graph?
A
V = M = ΔY / ΔX = S / T
10
Q
How to find acceleration (a) & displacement (s) in displacement-time graph?
A
i) A = M = ΔY / ΔX = V / T
ii) S = AREA OF GRAPH (TRAPEZIUM/TRIANGLE/RECTANGLE)
11
Q
How to calculate displacement for triangle?
A
use Pythagoras theorem, c = √(a² + b²)
