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3 years ago

Particle moving with constant acceleration changes its velocity from 10 m/s to

Physics

1 answer:

lorasvet [3.4K]3 years ago

6 0

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2. An airplane traveling north at 220. meters per second encounters a 50.0-meters-per-second crosswind

Alex777 [14]

The resultant speed of the plane is (3) 226 m/s

Why?

We can calculate the resultant speed of the plane by using the Pythagorean Theorem since both speeds are perpendicular (forming a right triangle).

So, calculating we have:

$ResultantSpeed=\sqrt{VerticalSpeed^{2}+HorizontalSpeed^{2}}\\\\ResultantSpeed=\sqrt{(220\frac{m}{s})^{2}+50\frac{m}{s})^{2}$

$ResulntantSpeed=\sqrt{48400\frac{m^{2} }{s^{2} }+2500\frac{m^{2} }{s^{2} } } \\\\ResultantSpeed=\sqrt{50900\frac{m^{2} }{s^{2} }}=226\frac{m}{s}$

Hence, we have that the resultant speed of the plane is (3) 226 m/s

Have a nice day!

5 0

3 years ago

ariel has 2.6 grams of zinc . what volume of the material does she have if zinc had density of 7.13 g/cm

vaieri [72.5K]

Answer:

Ap. 4.6

Explanation:

5 0

3 years ago

The wheel on an upside-down bicycle moves through 18.0 rad in 5.39 s. What is the wheel’s angular acceleration if its initial an

Elden [556K]

Explanation:

Formula to calculate angular acceleration is as follows.

$\Delta (\theta) = \frac{1}{2} \alpha \Delta t^{2} + \omega_{1} \Delta t$

or, $\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

Putting the given values into the above formula as follows.

$\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

= $\frac{2(18.0 rad - 2.5 rad/s \times 5.30 s)}{(5.39)^{2}}$

= 0.326 $rad/s^{2}$

Thus, we can conclude that the wheel’s angular acceleration if its initial angular speed is 2.5 rad/s is 0.326 $rad/s^{2}$ .

5 0

4 years ago

When an object rolls over a surface, the kind of friction that occurs is called

maks197457 [2]

Answer:

False, When an object rolls over a surface, the kind of friction that occurs is called <em><u>ROLLING FRICTION</u></em>

Explanation:

6 0

4 years ago

How have we been able to construct detailed maps of surface features on venus?

frosja888 [35]

CORRECT ANSWER:

by using radar from spacecraft that were sent to orbit Venus

STEP-BY-STEP EXPLANATION:

A spacecraft is a device or mechanism designed to fly out into space. A type of automated satellite, spacecraft is used for a variety of purposes including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and human and equipment transportation

4 0

3 years ago