You drive your car 5.0 km due East at 35 km/hr, and suddenly realize that you forgot your wallet. So, you return home, driving West at 40 km/hr, and upon arrival spend 10 minutes looking for it, and finally go back on the road for a total of 57.0 km due East. If your average velocity was 40 km/hr for the whole journey, what was your average speed on your last leg.
A. 49 km/hr
B. 40 km/hr
C. 45 km/hr
D. 56 km/hr
D. 56 km/hr
You might also like to view...
When a falling meteor is at a distance above the Earth's surface of 3 times the Earth's radius, what is its acceleration due to the Earth's gravity?
What will be an ideal response?
Where are open clusters found?
A.) No stars are forming in the galaxy today. B.) In the halo C.) In the disk. D.) Only around the Sun. E.) B and C.
The wavelength of a certain portion of an electromagnetic wave is 314 nm. What is its frequency and classification?
A) 9.55 × 1014 Hz, ultraviolet B) 9.55 × 1014 Hz, X-ray C) 8.44 × 1015 Hz, X-ray D) 9.55 × 1015 Hz, ultraviolet
The vertical speed of a projectile
a. is zero. b. stays constant. c. continuously increases. d. continuously decreases. e. sometimes decreases and sometimes increases.