Answer:
A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.
Step-by-step explanation:
By definition, Acceleration is the rate of change of Velocity of an object.
I.e it is the( final velocity minus initial velocity ) ÷ by the time it took for the velocity to change.
If we observe the choices only one choice gives us all 3 components (final velocity, initial velocity, time taken for velocity to change), which is :
A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.
a) All three athletes accelerated because the slope of every line in the beginning in positive.
b) Dash decelerated towards the end because the slope of the line representing him becomes negative.
c) Flash maintained a constant speed because the slope of his line does not change.
d) Krash's line is horizontal because he did not move for that time.
e) Flash won the race because his line reaches 100 first.
Answer:
(8,8)
Step-by-step explanation:
Solution for the given fractions
7/9 + 2/3 = ?
The common denominator of the two fractions is: 9
7/9 = (1*7)/(1*9) = 7/9
2/3 = (2*3)/(3*3) = 6/9
Fractions adjusted to a common denominator
7/9 + 2/3 = 7/9 + 6/9
(6+7)/9 = 13/9
