Answer:
Option B
Explanation:
Kinetic Energy is the energy possessed by the body due to <u>"motion"</u>.
Time taken by the boat to accelerate is 1 min 4 s.
<h3>How to calculate the time taken?</h3>
V - V = 2 a X ,
a = Vf2 - Vo2 / 2 X
= (26 m/s)2 -(13m/s)2 / 2(1250m)
= 507 m2/s2 / 2.5 m = 0.203 m/s2
Solve for time using the equation with acceleration known.
Vf = at + Vo ,
t = Vf - Vo / a = 26m/s -13m/s/ 0.203 m/s2
= 64 s
= 1 min 4 s
To learn more about time, refer
brainly.com/question/25800303
#SPJ4
You must summarize the Text in your own words. so there is no need for any help. XD
Answer:
11.98 N
Explanation:
Normal force = mg = 2.03 * 9.81
coeff of static friction must be overcome for the book to begin moving
.602 = F / (2.03 * 9.81) = 11.98 N