If you are traveling around a curve at a constant speed of 30 km/h, is your velocity changing?

1 answer:

8 0

Velocity means [ (speed) and (direction) ].

If you're traveling around a curve, then your direction is
always changing. So your velocity is always changing,
even if your speed isn't.

You might be interested in

A fire hose held near the ground shoots water at a speed of 6.5 m/s. At what angle(s) should the nozzle point in order that the

valina [46]

The speed of water can be split into vertical and horizontal speed components:
$v_x = 6.5 cos \theta \\ v_y = 6.5 sin \theta$

Due to the force of gravity, the y component will be parabolic. The x component will be linear:
$y(t) = -4.9t^2 + (6.5sin \theta) t \\ \\ x(t) = (6.5 cos \theta) t$
To find when the water hits the ground 2.5m away, set y= 0 and x = 2.5
$-4.9t^2 + (6.5sin \theta) t=0 \\ \\ t = \frac{6.5}{4.9} sin \theta \\ \\(6.5 cos \theta)(\frac{6.5}{4.9} sin \theta) = 2.5 \\ \\ sin \theta cos \theta = 0.29 \\ \\ sin 2\theta = 0.58 \\ \\ 2\theta = 35.4, 144.6 \\ \\ \theta = 17.7,72.3$

8 0

3 years ago

What is a gravitational force? give two examples to illustrate it.

fredd [130]

Answer:

The gravitational force is a force that attracts any two objects with mass.

Explanation:

Some examples of the force of gravity include: The force that holds the gases in the sun. The force that causes a ball you throw in the air to come down again.

7 0

4 years ago

Read 2 more answers

To get employees to work longer hours, employers often offer __________ in the form of extra pay.

Dovator [93]

C- Incentives it’s like a reward ~!

6 0

3 years ago

A uterine ultrasound is performed in the hospital outpatient department and interpreted and reported by a contracted radiologist

KiRa [710]

Answer:

Explanation:

It is pertinent to note that modifier 26 is appropriate when the physician supervised or interprets a diagnostic test, even if he or she did not perform the test personally. Also do not append modifier 26 if there is a code to describe only the professional/physician component of a given service (examples are 93010 Electrocardiogram, routine ECG with at least 12 leads, interpretation and report only).

4 0

4 years ago

What are some predicted affects of climate change linked to global warming

Alla [95]

Decrease in atmospheric ozone, which results in lower protection from various stellar particles

5 0

3 years ago