X= 8 radical 5 and y= 8 radical 10
Answer:
The launch angle should be adjusted to 30.63°
Step-by-step explanation:
The range of a projectile which is the horizontal distance covered by the projectile can be expressed as;
R =(v^2 sin2θ)/g
Where
R = range
v = initial speed
θ = launch angle
g = acceleration due to gravity
For the case above. When the projectile is launched at angle 13° above the horizontal.
θ1 = 13
R1 = (v^2 sin2θ1)/g
R1 = (v^2 sin26°)/g ....1
For the range to double
R2 = (v^2 sin2θ)/g .....2
R2 = 2R1
Substituting R2 and R1
(v^2 sin2θ)/g = 2 × (v^2 sin26°)/g
Divide both sides by v^2/g
sin2θ = 2sin26
2θ = sininverse(2sin26)
θ = sininverse(2sin26)/2
θ = 30.63°
Answer:
i think the answer is x = 3
or x = -3 or
Step-by-step explanation:
Answer:
$48.15
Step-by-step explanation:
Take 45 and multiply it by 0.07 and you get 3.15. Add that number to 45 and you get 48.15 as your answer
Answer:
2 hours
Step-by-step explanation:
Sandy is 4 times faster than her brother.1/2 hour x 4 =2hours
