The boy’s foot causes the motion. His foot is the one that causes the ball to roll down the hill.
The change in angular displacement as a function of time is the definition given for angular velocity, this is mathematically described as

Here,
= Angular displacement
t = time
The angular velocity is given as

PART A) The angular velocity in SI Units will be,


PART B) From our first equation we can rearrange to find the angular displacement then

Replacing,


People have dominant and recessive traits. If there are more dominant traits or the recessive trait just was barely there the parents might not show it while their child could show that recessive trait
Answer:force is an agent which change the state of rest or uniform motion of a body. The unit of force newton
Explanation:
Force is that which change the state of rest or uniform motion of an object.the unit of force is newton or kgm/s^2
Not entirely sure if you're saying Homologous , but assuming you do , the homologous chromosomes seperate in the anaphase stage of Mitsosis of the Cell cycle