Physics College


An aircraft lands and brakes, slowing from 250 m/s to 5 m/s in 30 secs. What is it's acceleration?
O-10 m/s²
-8.2 m/s²
-1.3 m/s²
-5.2 m/s²

Answers

Answer 1

The acceleration of the aircraft is determined as -8.2 m/s².

Acceleration of the aircraft

The acceleration of the aircraft is calculated as follows;

a = Δv/t

where;

Δv is change in velocityt is time

a = (5 - 250)/(30)

a = -8.2 m/s²

Thus, the acceleration of the aircraft is determined as -8.2 m/s².

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Related Questions

What happens to sound waves from an object as it moves toward you?

The pitch gets higher because of an increase in wavelength.
The pitch gets lower because of an increase in frequency.
The pitch gets lower because of an increase in wavelength.
The pitch gets higher because of an increase in frequency.

Answers

The event that happens to sound waves from an object as it moves toward you is The pitch gets higher because of an increase in wavelength.

What is sound waves?

Sound waves refer to a form of transverse wave that compress and vibrate while travelling from one medium to another thereby transferring energy.

Therefore, The event that happens to sound waves from an object as it moves toward you is The pitch gets higher because of an increase in wavelength.

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A type of anchor that is a good choice when jacking or leveling
the fastening component is a(n)_
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Answers

A type of anchor that is a good choice when jacking or leveling the fastening component is a stud bolt anchor.

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These are the type of anchor which bare embedded in concrete with the threaded portion on the outside.

This makes it easier to jack or level the fastening component which is why option B was chosen.

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