A farm truck travels due east with a constant speed of 9.50 m/s along a horizontal road. A boy riding in the back of the truck t
1 answer:
Answer:
a)he angle is 90 with respect to the horizontal (x axis)
b) its speed is zero both vertically and horizontally
c) vertical path
d) a parabolic movement
e) v₀ = (9.5i ^ + 8.232 j ^) m / s
Explanation:
This is a relative problem and movement.
.v ’= v + u
Where v ’is the speed with respect to the mobile system, v the speed with respect to the fixed system and the speed between the two reference systems
a) The child and the can is in the truck, so they go at the speed of the truck, when he throws the can he continues at this speed on the x-axis and therefore as the two advance the same distance the more hands of the child, consequently the can is thrown vertically
The angle is 90 with respect to the horizontal (x axis)
b) with respect to the truck, the can is still, so its speed is zero both vertically and horizontally
c) The child sees that the can follows a vertical path
d) A stationary observer on the ground, sees that the can has a constant speed in the same direction of the truck and when they throw it vertical goal has a vertical movement, the sum of these two movements gives a parabolic movement of the same uncle as a projectile launch
e) the initial speed has two components
X Axis v_lata = v_camion = 9.5 m / s
Y Axis speed given by the child
Let's look for the travel time
x = v₀ₓ t
t = x / v₀ₓ
t = 16 / 9.5
t = 1.68 s
y = t - ½ g t²
When he returns to the child's hand and = 0
0 = v_{oy} t - ½ g t²
v_{oy} = ½ g t
v_{oy} = ½ 9.8 1.68
v_{oy} = 8,232 m / s
Speed is
v₀ = (9.5i ^ + 8.232 j ^) m / s
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Complete Question
An oil tanker has collided with a smaller vessel, resulting in an oil spill in a large, calm-water bay of the ocean. You are investigating the environmental effects of the accident and need to know the area of the spill. The tanker captain informs you that 18000 liters of oil have escaped and that the oil has an index of refraction of n = 1.1. The index of refraction of the ocean water is 1.33. From the deck of your ship you note that in the sunlight the oil slick appears to be blue. A spectroscope confirms that the dominant wavelength from the surface of the spill is 485 nm. Assuming a uniform thickness, what is the largest total area oil slick
Answer:
The largest total area of the oil slick
Explanation:
From the question we are told that
The volume of oil the escaped is
The refractive index of oil is
The refractive index of water is
The wavelength of the light is
Generally the thickness of the oil for condition of constructive interference between the oil and the water is mathematically represented as
Where is the order of interference of the light and it value ranges from 1, 2, 3,...n
It is usually take as 1 unless stated otherwise by the question
substituting value
The are can be mathematically evaluated as
Substituting values
The final velocity is 5.87 m/s
<u>Explanation:</u>
Given-
mass, = 72 kg
speed, = 5.8 m/s
,
= 45 kg
,
= 12 m/s
Θ = 60°
Final velocity, v = ?
Applying the conservation of momentum:
X
+
X
= (
+
) v
72 X 5.8 + 45 X 12 X cos 60° = (72 + 45) v
v = 417.6 + 540 X
v = 417.6 +
v = 5.87 m/s
The final velocity is 5.87 m/s