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Savatey [412]
2 years ago
8

1. A line

Mathematics
1 answer:
sammy [17]2 years ago
4 0
What are the directions for this?
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A 1400 kg car moving +13.7 m/s makes an elastic collision with a 3200 kg truck, initially at rest. What is the velocity of the c
Kamila [148]

Answer:

The velocity of the car after the collision is -5.36 m/s

Step-by-step explanation:

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

let the following:

m₁ = mass of the car = 1400 kg

m₂ = mass of the truck = 3200 kg

u₁ = velocity of the car before collision = 13.7 m/s

u₂ = velocity of the truck before collision = 0 m/s

v₁ = velocity of the car after collision

v₂ = velocity of the truck after collision

v₁ = [ u₁ * (m₁ - m₂) + u₂ * 2m₂ ]/ (m₁ + m₂)

   =  [ 13.7 * (1400 - 3200) + 0 * 2 * 3200 ]/ (1400 + 3200)

   = - 5.36 m/s

So, <u>the velocity of the car after the collision is -5.36 m/s</u>

7 0
3 years ago
Please answer the following, 50 points available!
Rus_ich [418]

Answer for Area:

6,518.75 square meters

Explanation for Area:

First, you would multiply the length and the width of the car park to find its area (75 x 100 =7500). Now, find the area of the arena. Since you are given the diameter, divide it by 2 to get the radius (25). Now multiply π by 25^2. This should give you 1962.5. Then, since only half of the arena is in the car park, divide the area of the arena by 2. Now you have 981.25. Now, subtract this from the area of the car park (7500). Your answer should now be 6,518.75.

Answer for Fence:

295 meters

Explanation for Fence:

Add up all the sides. There are two sides with 100 meters and 2 sides with 75 meters. But, because you arent supposed to include the space where the arena is. only add 25. This gets you 300. Now, subtract 5 meters for a gate. 295 is your final answer.

6 0
3 years ago
Read 2 more answers
-11p - -110 - -19p - 3 = 16​
amid [387]
The answer is P= 80/19
hope this helps
6 0
2 years ago
Vera ordered a soup, salad, and sandwich to share with her friends. The probabilities of each item being ready
Mkey [24]

Answer:

its

Soup ready first

Sandwich ready first

Salad ready first

Step-by-step explanation:

7 0
3 years ago
BBC News had 6,632,512 viewers for its evening bulletin. <br><br> What is the place value of the 3?
VashaNatasha [74]
<span> 6,632,512

</span><span>the place value of the 3 is 30,000

hope it helps</span>
6 0
3 years ago
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