Data:
h=25 m
v₀=0 m/s
g=9,8 m/s²
we use this formula
h=h₀+v₀.t+(1/2).g.t²
25 m=0 m+0 m/s.t+(1/2).(9,8 m/s²).t²
25 m=4,9 m/s².t²
t²=25 m /4,9 m/s²
t²=5,1 s²
t=√(5,1 s²)=2,26 s
Now, we calculate the última velocity
v=v₀+gt
v=0 m/s+9,8 m/s².(2,26 s)=22,14 m/s≈22 m/s
solution: c.) 22 m/s
Answer:

Explanation:
Given data
Force F=599 N
Angle α=40.8°
To find
x scalar component
Solution
The Scalar x component can be found by
The Scalar y component can be found by

Explanation:
From 2s, velocity increased gradually up to 4s
Newton's principle
newton's 2nd law of motion where F=ma