Two identical cars are driving directly toward each other with speeds of 50 mph and 60 mph. Find their combined speed if the collision is perfectly inelastic.

i think the answer is a and b

i wish you luck

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

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