Kinematics Flashcards
Memorize formulas and standard practices
Wherever you see ‘Maximum Height’
Final velocity, v = 0
Velocity
Change in displacement / Time
Acceleration
Change in velocity / Time
1st equation of motion
v = u + at
2nd equation of motion
s = ut + 1/2at^2
3rd equation of motion
v^2 = u^2n + 2as
Time taken to reach maximum height
u sin @ / g
Time of flight
2 u sin @ / g
Range (Maximum horizontal distance)?
R = u^2 sin 2@ / g
What is the range?
Maximum horizontal distance
Maximum height?
H = u^2 sin^2 @ / 2g
What is Newton’s second law of motion?
If the net force acting on a body is not zero, it accelerates in the direction of the net force.
What is Newton’s third law of motion?
Whenever two bodies interact, the forces they exert on each other are always in magnitude and opposite in direction.
Impulse
Force x Time
Momentum
Mass x Velocity
State the law of conservation of momentum
It states that the total momentum of colliding bodies before impact is equal to the total momentum after, provided that there were no external forces acting on the system of colliding bodies.
When is collision said to be elastic?
It is elastic when there is no energy lost after collision and the kinetic energy remains the same.
When is collision said to be inelastic?
It is inelastic when there is no energy lost after collision and the kinetic energy changes.
