help me please on this question?
At the annual turtle races, Poindexter, the previous year’s winner, is trying to retain his title. As the race begins Poindexter starts off moving with a speed of 0.025 m/s. He retains this speed for 0.5 meters at which time he speeds up to 0.10 m/s. He continues at this rate for 0.75 meters. Tiring, he slows to 0.07 m/s and continues for another half of a meter. Applying all his concentration and effort for the last bit of the race he increases his speed to a swift 0.085 m/s. An exhausted Wood Turtle, Poindexter completes his two meter race beating his closest competitor by a nose.
In what amount time did Poindexter run the race?
I’m not doing your homework for you but here:
.5 meters at .025 m/s so divide .5 by .025, thats 20 seconds
another .75 at .1 m/s sec, divide and add the result to 20 seconds, keep adding them up for the total time.
Break it up into each distance/speed segment, do the math then add up all the seconds. Your numbers are all in m/s so you don’t need to convert anything. You’ll get the last segment distance by subtracting how far he has allready gone from 2m.
: )
Rate-My-Date and Date-O-Meter…the hilarious ice breaker and flirt gadget for the iPhone
|
|
Digital Wrist Blood Pressure Monitor & Heart Beat Meter Measures Pulse Rate $14.15 |
|
|
Blood Pressure Monitor Wrist Heart Beat Rate Meter NEW $19.99 |
|
|
Digital Wrist/Cuff Blood Pressure Monitor Heart Beat Rate Meter Sphygmomanometer $10.85 |
|
|
Blood Pressure Monitor Wrist Heart Beat Rate Meter NEW $19.99 |
|
|
Digital Wrist Blood Pressure Monitor & Heart Beat Meter Measures Pulse Rate # $13.99 |
|
|
NEW Medline Digital Blood Pressure Monitor & Heart Beat Rate Meter Pulse $39.99 |