write down the relationship for finding the range and time of flight for a projectile fired with an initial velocity of U and at an angle of elevation of 0. A body projected upward at an angle of 30° with the horizontal has an initial speed of 90ms^-1. In how many seconds will it reach the ground?.How far from the point of projection will it strike the ground?.At what angle with the horizontal will it strike?

thermal energy is the answer

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

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;