A car accelerates from rest at an incredibly slow rate of 0.5 m/s/s.
How long does it take for the car to reach a final
velocity of 30 m/s?

60 seconds

Explanation:

Acceleration is the rate of change of velocity. For every second that passes, the velocity increases by an increment of 0.5. So after 60 seconds, the velocity of the car will be 30 m/s.

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form