Alleshouse390
Answered

Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Explore our Q&A platform to find in-depth answers from a wide range of experts in different fields. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

You run straight off a high diving board at a speed of 6 m/sec. You hit
the water 2 seconds later.
a. How far did you travel horizontally during the 2 seconds?
b. How far did you travel vertically during the 2 seconds?
c. How fast were you moving horizontally when you hit the water?
d. How fast were you moving vertically when you hit the water?

Sagot :

AL2006


a). Your horizontal speed doesn't change. 
Your horizontal distance is . . .

         (speed) x (time) = ( 6 m/s ) x ( 2s ) = 12 meters .
  ====================================
b). Your vertical motion is accelerated because of gravity.
Your vertical distance is . . .

  (original vertical speed x time) + (1/2) (acceleration of gravity) (time)²

  =      ( 0 )                          + (1/2) (9.81) (2)²

  =      4.905 x 4  =  19.62 meters  (a very high diving board indeed, like 64-ft !)
  ====================================
c). Your horizontal speed doesn't change. 
It's still 6 m/s when you splash down.
  ====================================
d). Your vertical speed grows steadily, because of gravity.
It becomes 9.81 m/s greater every second.

After 2 seconds, your vertical speed is (2 s) x (9.81 m/s²) = 19.62 m/s downward


Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.