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OLga [1]
4 years ago
9

When merging onto an expressway from an acceleration lane, you should A: Speed up as quickly as possible to get ahead of the exp

ressway traffic beside you. B: Yield the right-of-way to all traffic already on the expressway. C: Enter the right lane of the expressway at any point, because you have the right-of-way.
Physics
2 answers:
babunello [35]4 years ago
7 0
B.Because you cant pull out whenever you want just because you have the right away. Hope this helps.
Anastasy [175]4 years ago
5 0

Answer:

B: Yield the right-of-way to all traffic already on the expressway.

Explanation:

Driving is an act that requires extreme responsibility. When you drive you must be a responsible driver who abides by all laws, signs and traffic signs. In addition, a responsible driver should keep his or her attention on the road, avoiding maneuvers that could cause possible accidents and paying attention to the structure and operation of your car. If you are a prudent and responsible driver when merging into an expressway from an acceleration lane, you should use the lane for all traffic already on the expressway.

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Which of the following has unbalanced force? Someone help pls
Levart [38]
I think its the car moving to a stop sign
4 0
3 years ago
Tarzan, who weighs 825 N, swings from a cliff at the end of a 19.7 m vine that hangs from a high tree limb and initially makes a
kodGreya [7K]

Answer:

a) T = (281.47 i ^ + 714.56 j ^) N , b) F_net = (281.47 i ^ - 110.44 j ^) N ,

c)  F = 281.70 N, d)    θ = 338.58º , e)  a = 3,588 m / s² , f)  θ = 201.45º

Explanation:

For this exercise we will use Newton's second law on each axis

X axis

         -Tₓ = m aₓ

Y Axisy

          T_{y} –W = m a_{y}

Let's use trigonometry to find the components of force

          sin 21.5 = Tₓ / T

          cos 21.5 = T_{y} / T

          Tₓ = T sin 21.5

          T_{y} = T cos 21.5

          Tₓ = 768 sin 21.5 = 281.47 N

          T_{y} = 768 cos 21.5 = 714.56 N

a) the force of the rope on Tarzan is

          T = (281.47 i ^ + 714.56 j ^) N

b) The net force is the subtraction of the tension minus the weight of Tarzan

Y  Axis   F_net = 714.56 - 825 = -110.44 N

              F_net = (281.47 i ^ - 110.44 j ^) N

c) Let's use Pythagoras' theorem

      F = √ (Fₓ² + T_{y}²)

      F = √ (281.47² + 110.44²)

      F = 281.70 N

d) Let's use trigonometry

     tan θ = F_{y} / Fₓ

      θ = tan⁻¹ F_{y} / Fₓ

      θ = tan⁻¹ (-110.44 / 281.47)

       θ = -21.42º

This angle is average clockwise, for counterclockwise measurement

       θ = 360 - 21.42

       θ = 338.58º

Acceleration

X axis

             Tₓ = m aₓ

             aₓ = Tₓ / m

The mass of Tarzan is

             m = W / g

             m = 825 / 9.8 = 84.18 kg

             

             aₓ = 281.47 / 84.18

             aₓ = -3.34 m / s2

Y Axis

            T_{y}-W = m a_{y}

            a_{y} = (T_{y} -W) / m

            a_{y} = (714.56-825) / 84.18

            a_{y} = - 1,312 m / s²

Acceleration Module

             a = √ aₓ² + a_{y}²

             a = √ (3.34² +1.312²)

             a = 3,588 m / s²

The angle

          θ = tan⁻¹ a_{y} / aₓ

          θ = tan⁻¹ (-1312 / -3.34)

          θ = 21.45º

Notice that the two components of the acceleration are negative, so the angle is in the third quadrant, to measure from the x-axis

          θ = 180 + 21.45

          θ = 201.45º

3 0
3 years ago
What type of image can be larger or smaller than the object?
Stolb23 [73]
It’s D. An enlargement (hope this helps!)
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If you push an 5 N object 2 m and then push a 10 N object 2 m. Which is TRUE?
Nadya [2.5K]

Answer:

Explanation:

You don't do the same amount of work. The work formula is F*d = W

W = work

F = force

d = the distance moved.

So you do more work when you move the 10N object because the Force (F) has doubled.

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3 years ago
Which object will have more inertia a 100kg rock a 5kg book a 60kg person or a 2000kg car
SSSSS [86.1K]
The formula for solving the inertia (I) is I=mr² where "m" represents the mass of an object and "r" represents the perpendicular distance to the rotation axis.
item 1= 100 kg rock
Item 2= 5kg book
item 3= 60kg person
item 4=2000kg car.

The answer is the last item which is a 2000kg car.
7 0
3 years ago
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