A ping pong player hits a ball horizontally at 10.meters per second from an initial height of 1.5 meters, as represented in the following diagram. Use the diagram and information to answer any questions that follow. What is the magnitude of the final velocity of the ball when it hits the ground?
A.
4.6 m/s

B.
10. m/s

C.
11 m/s

D.
15 m/s

i need the answer to this too but idk it ; -;

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

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