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zepelin [54]
2 years ago
12

You are travelling at 60.0 mph on the Grand Central Parkway near exit 10 where it is (nearly) parallel to the Long Island Expres

sway (LIE). a) A truck on the LIE going in the SAME direction as you is travelling at 55.0 mph. What is YOUR relative velocity compared to that truck? b) A truck on the LIE going in the OPPOSITE direction as you is travelling at 55.0 mph. What is YOUR relative velocity compared to that truck?
Physics
1 answer:
Romashka-Z-Leto [24]2 years ago
4 0

Answer:

a)Vr= 5 mph

b)Vr= 115 mph

Explanation:

Lets

your velocity ,u= 60 mph

velocity of truck ,v= 55 mph

When object are moving in opposite direction the relative velocity  = u +v When object are moving in opposite direction the relative velocity  = u - v

a)

Truck is moving in the same direction ,so the  relative velocity

Vr= = u - v

Vr= 60 - 55

Vr= 5 mph

b)

Truck is moving in the opposite direction ,so the  relative velocity

Vr= = u+v

Vr= 60 + 55

Vr= 115 mph

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a planet

Explanation:

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Because of your success in physics class you are selected for an internship at a prestigious bicycle company in its research and
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To develop the problem it is necessary to apply the equations related to the moment of inertia.

The given values can be defined as,

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According to the definition of the moment of inertia applied to the exercise we can arrive at the equation that,

I = I_{rim} + n * I_{spoke}

Where n is the number of spokes necessary to construct the wheel.

I_{rim} = M*r^2 = 1.0 * 0.5^2

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Replacing the values at the general equation we have,

0.280 = 1.0 * 0.5^2 + n * (1/3 * 10 * 10^-3 * 0.5^2 )

Solving for n,

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4 0
3 years ago
It is easier to see clothes with pointed needle than a blunt one​
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Answer:

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IF YOU FOUND MY ANSWER USEFUL THEN PLEASE MARK ME BRAINLIEST.

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In this exercise it is asked to identify the forces, fundamentally on the free there are the forces of gravity and the support force of the hand, with these facts we answer the questions

1) the correct answer is b and d

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the correct answer which is b

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