<span>Force = 10 N; Mass = 2 kg; Coefficient of kinetic friction = 0.20; Distance s = 10 m
Force m x g = 2 x 9.8 = 19.6
Multiplying force with Coefficient of friction that gives force required = 19.6 x 0.2 = 3.92 N
Resultant force = 10 - 3.92 = 6.08
Acceleration a = F / m = 6.08 / 2 = 3.04
We have equation v^2=u^2+2as
initial velocity will be 0 thatis u^2 = 0, so v^2 = 2as = 2 x 3.04 x 10 = 60.8
Final Kinetic energy KEf = 1/2 x m x v^2 = 1/2 x 2 x 60.8 = 60.8 J
Initial Kinetic energy KEi = 1/2 x m x u^2 = 1/2 x 2 x 0 = 0
So change in kinetic energy = 60.8 J</span>
'a', 'b', and 'c' are all reasonable statements.
Answer:
C
Explanation:
Wetlands: These are areas or placed where water covers the soil or the area or is present either at or near the surface of the soil all year or for varying periods of time during the year,it may also include the growing season.
It would help if you listed the needed vocabulary words.