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kow [346]
3 years ago
13

In coming to a stop, a car leaves skid marks 85m long on the highway. Assuming a deceleration of 3.0m/s/s , estimate the speed o

f the car just before braking.
Physics
1 answer:
muminat3 years ago
4 0
Based on your question where a car leaves skid marks 85m long on the highway nad getting to stop. The deceleration of the car is 3m/s^2 to estimate the speed of the car just before braking first is to analyze the problem then apply the necessary formulas. the possible answer is  510m/s
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A group of big city tenants were upset about rising rent for their apartments, and decided to play a prank on the Building Manag
Naya [18.7K]

Answer:

  t = 6 s

Explanation:

This is a free fall exercise

          y = y₀ + v₀ t - ½ g t²

If the balloon is released its initial velocity is zero, when it reaches the floor its height is also zero, we substitute

         0 = y₀ + 0  - ½ g t2

         t = √(2yo / g)

let's calculate

         t = √ (2 176.4 / 9.8)

         t = 6 s

the balloon must be released 6 s before the person reaches the building

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Comentarios

5 0
3 years ago
Consider a thin circular disk that has been heated up to 400 °C and then left inside a chamber to cool down. The chamber surface
kogti [31]

Answer:

hello your question lacks the required diagram attached below is the complete question with the required diagram

answer : Qtotal = 807.4 Mw

Explanation:

Given Data :

disk properties :

∈ = 0.65

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attached below is the detailed solution

The total rate of Heat transferred from the disk

Qtotal = 807.4 Mw

7 0
3 years ago
Which is a characteristic of projectile motion?
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A projectile<span> is an object upon which the only force acting is gravity. Many </span>projectiles<span> not only undergo a vertical </span>motion<span>, but also undergo a horizontal </span>motion<span>. That is, as they move upward or downward they are also moving horizontally.</span>
3 0
3 years ago
Read 2 more answers
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Answer:

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Answer:

In the picture

Explanation:

I hope that it's a clear solution and explanation, hope that helps.

8 0
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