In her physics lab, Eliza puts a 1.0-kg mass on a 2.0 kg block of wood. She pulls the combination across another wooden board with a constant speed to determine the coefficient of sliding friction between the two surfaces. If Eliza must pull with a force of 6.0 N, what coefficient of sliding friction does she calculate for wood on wood?

6/12=1/2

step-by-step explanation:

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when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min