Answer:
4.73 m/s
Explanation:
R=1.84 m
H=0.251 m
∅=38.3°
For Horizontal Motion
aₓ=0 uₓ=ucos∅
x=uₓt+[tex]\frac{1axt^{2} }{2}[/tex]
R=ucos∅*t+0
1.84=ucos(38.3)*t
t=[tex]\frac{2.344}{u}[/tex]
For Vertical Motion
Y=Uy*t+[tex]\frac{1ayt^{2} }{2}[/tex]
By putting value
0.251=usin∅([tex]\frac{2.344}{u}[/tex])-([tex]\frac{1}{2}g *(\frac{2.344}{u} )^{2}[/tex])
0.251=sin(38.3)([tex]\frac{2.344}[/tex])-([tex]\frac{1}{2}g *(\frac{2.344}{u} )^{2}[/tex])
0.251=1.452-[tex]\frac{83.057}{u^{2} }[/tex]
u²=22.41
u=4.73 m/s
