Answer:
4.11 m/s
Explanation:
Given:
v₀ₓ = 1.25 m/s
aₓ = 0 m/s²
v₀ᵧ = 0 m/s
aᵧ = -9.8 m/s²
t = 0.4 s
Find: v
First, in the x direction:
vₓ = aₓt + v₀ₓ
vₓ = (0 m/s²) (0.4 s) + 1.25 m/s
vₓ = 1.25 m/s
And in the y direction:
vᵧ = aᵧt + v₀ᵧ
vᵧ = (-9.8 m/s²) (0.4 s) + 0 m/s
vᵧ = -3.92 m/s
The net speed is found with Pythagorean theorem:
v² = vₓ² + vᵧ²
v² = (1.25 m/s)² + (-3.92 m/s)²
v = 4.11 m/s
Answer:
i) 0.9504
ii) 0.0452
Explanation:
Given data: reliability of hydraulic brakes= 0.96
reliability of mechanical brakes = 0.99
So the probability of stopping the truck = 0.96×0.99= 0.9504
At low speed
case: A works and B does not
= 0.96×(1-0.99) = 0.0096
case2 : B works and A does not
= 0.99×(1-0.96) = 0.0396
Therefore, probality of stopping = 0.0096+0.0396 = 0.0492
Answer:
U would need to know the depth of the water
Explanation:
<span>When we see a solid color that is red, blue, or black let's say, it is said to have a high saturation of color. A color that is almost gray has very little or very saturation. Of course, the amount of gray can vary greatly but for the most part a color that is almost gray has little or no saturation at all.</span>