Follow two steps below to derive Eq. (6): i. Insert the angular acceleration from Eq. (2) and the moment of inertia from Eq. (5) into RHS of Eq. (4) and find the friction in terms of these quantities. ii. Insert the friction obtained in i. into Eq. (3) and rearrange it to get Eq. (6)

show the wavelengths of a wave. show the crests of a wave.

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