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2 years ago

Why are cars designed so the air pushes them towards the ground when driving at high speed

Physics

1 answer:

Vlad1618 [11]2 years ago

3 0

Answer:

Below!

Explanation:

Since the air pressure under the wing is greater than that above the wing, lift is produced. The shape of the Indy car exhibits the same principle. The shape of the chasis is similar to an upside down airfoil. The air moving under the car moves faster than that above it, creating downforce or negative lift on the car.

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the volume of a water tank is 5m×4m×2m. If the tank is half filled with water. calculate the pressure exerted at the bottom of t

Natali5045456 [20]

Answer:

10⁴ Pa

Explanation:

Volume = 5m * 4m * 2m

When the tank is half filled ,

Volume = 5m * 4m * 1m = 20m³

Also we know that ,

Density of water = 10³ kg/ m³

$\longrightarrow$ Density = Mass/Volume

$\longrightarrow$ 10³ kg/m³ = m/20m³

$\longrightarrow$ m = 2 * 10⁴ kg

So that ,

$\longrightarrow$ Weight = mg

$\longrightarrow$ F = 2*10⁴ × 10 N

$\longrightarrow$ F = 2 * 10⁵ N

And ,

$\longrightarrow$ Pressure = Force/Area

$\longrightarrow$ P = 2 *10⁵/ 5 * 4 Pa

$\longrightarrow$ P = 10⁴ Pa

5 0

3 years ago

The effort is always less than the load for a second-class lever. true or false

ddd [48]

False

Have a nice day

8 0

3 years ago

Read 2 more answers

You and your friend Peter are putting new shingles on a roof pitched at 21∘. You're sitting on the very top of the roof when Pet

Marat540 [252]

Answer:

3.69 m/s

Explanation:

Forces :

mgsin Θ - mumgcosΘ = ma

g x sinΘ - mu x g x cosΘ = a

9.8 x sin 21 - 0.53 x 9.8 x cos 21 = a

a = -1.337 m/s²

so you have final velocity = 0 m/s

initial velocity = ? m/s

Given d = 5.1 m

By kinematics

vf² = vo² + 2ad

0 = vo² + 2 x -1.337*5.1

vo = 3.69 m/s

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4 years ago

A vector must always have both size and ..

DochEvi [55]

Both magnitude and DIRECTION
For example,
• 12m East
• -2 miles
•9 meter north
• 8 miles up

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3 years ago

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melamori03 [73]

This it you can do it boy or girl 

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3 years ago