Consider two cyclists (mike and adam) racing on course of length d. mike travels the complete racetrack at an average speed of v. adam covers the first half of the course length at speed v/2, then covers the second half at speed 2v. a) who wins the race? b) where is the loser when the winner crosses the finish line?

a) Mike wins the race

b) 0.5d

Explanation:

Mike's kinematics :

t₁ = d/v  : time spent Mike to reach the finish line

Adam's kinematics :

t₂= 1.25 d/v :  time spent Adam to reach the finish line

a) Mike wins the race because he spends less time .

t₁ < t₂

b) We calculate the time difference to determine the distance Adam is from the finish line

t₂-t₁ = 1.25 d/v- d/v

t₂-t₁ = 0.25 d/v

x=2v*0.25 d/v

x= 0.5d : Adam's distance to reach the finish lin

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)