Laws Of Motion Flashcards
1
Q
1st law of motion
A
Every body continues to be in its state of rest or motion in a straight line unless compelled by an ext force
2
Q
If ext force = 0, acc
A
0
3
Q
2nd law
A
Rate of change of momentum of a body is directly prop to applied force & takes place in the direction in which the force acts
F=ma
4
Q
Impulse formula
A
= Force×time
= change in momentum
5
Q
3rd law
A
To every action, there is always an equal & opposite reaction
6
Q
State Conservation of momentum
A
Total momentum of an isolated system of particles is conserved
7
Q
State Equilibrium of a particle
A
Situation where ext force on a particle is 0
F1 + F2 + F3 = 0
8
Q
Fs(max) =
A
Myu × N
9
Q
Law of static friction formula
A
F(s) <= myu(s) × N
10
Q
Motion of a car on a banked road formula
A
Vmax = [Rg myu(s) - tanø/1-myu(s)tanø]½
