A women walks 550m north , then 350 m west , then 250 m south , then 450 m east and finally 150 m south . The whole journey took 1 hour 45 minutes. construct a scale diagram to illustrate the path of the women. Scale:1cm=100m . Use a grid paper.

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

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.