distance= speed x time
Speed= distance/time
Time= distance/speed
Similarly,
Displacement= velocity x time
Velocity= displacement/time
Time= displacement/speed
v= final velocity
u= initial velocity
s= displacement ( can be speed also, depending on the question)
a= acceleration
t= time
$a=(v-u)/t$
1st law of motion= Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
**Momentum= mv OR p=mv (momentum is denoted by p)