Answer:
given values are:
- u=20 m/s
- t= 30 s
- s= 1200 m
- v= ?
- a=?
<h2>s = ut + 1/2 at²</h2>
1200 = 20×30 + 1/2 × 30²a
1200= 600 + 1/2 × 900a
600 = 450a
a = 600 / 450
a = 1.33 m/s²
<h2>v²= u² +2as</h2>
v² = 20² +2 × 1.33 × 1200
v²= 400 + 3192
v = √3592
v = 59.9 ≈ 60 m/s
√3*√12 = <span>√36 = 6
But since there is option as 6, the answer would be </span>√36.
5y-10=-25
5y=-25+10 addition property of equa
5y=-15 simplifying
Y=-15/5 dividing property
Y=-3
