1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Law Incorporation [45]
3 years ago
9

1. The path of motion of a thrown javelin is an example of (blank) motion.

Physics
2 answers:
dangina [55]3 years ago
6 0

Explanation :

(1) The path of motion of a thrown javelin is an example of projectile motion. It is a type of motion that is experienced by an object that is thrown near the earth's surface. The object then moves along a curved path under the influence of gravity.

(2)  Force is the product of mass and velocity i.e. F = ma

So,       a=\dfrac{force}{mass}

Hence, the acceleration of an object is equal to net<em> force</em> acting on the object dividing by the objects<em> mass.</em>

(3) The pressure exerted by a fluid at any given depth is exerted <em>uniformly </em>in all directions.

(4) Mass of canoe, m = 38 Kg

velocity of canoe, v = 2.2 m\s

momentum is given by, p = mv

p=38\ Kg\times 2.2\ m/s

p=83.6\ Kg\ m/s

So, momentum of canoe is 83.6 Kgm/s

(5) Acceleration is given by the rate of change of velocity per unit time. If v_f is final velocity and v_i is initial velocity,

Then change in velocity will be v_f-v_i

since, a=\dfrac{change\ in \ velocity}{time}

So, a=\dfrac{v_f-v_i}{t}

Andre45 [30]3 years ago
3 0

1. <em>The path covered by the javelin will be a </em><em><u>Projectile</u></em><em>.</em>

2. <em>The acceleration of an object is equal to net </em><u><em>Force</em></u><em> acting on object dividing by object's </em><u><em>mass</em></u><em>.</em>

3. <em>The pressure exerted by a fluid at any given depth is exerted </em><u><em>Uniformly</em></u><em> in all directions.</em>

4. <em>The momentum of the canoe is </em>\boxed{83.6\text{ kg}\cdot\text{m/s}}.

5. <em>The acceleration of a body is defined as the ratio change in velocity to the time taken for change in velocity.</em>

Explanation:

<u>Part 1:</u>

As the javelin is thrown, it is thrown by making some angle from the ground such that it covers some distance in the vertical direction and also some distance along the horizontal direction.

Therefore, as the javelin moves in both horizontal as well as vertical direction, its motion will be considered as the <u>projectile motion</u>.

<u>Part 2:</u>

According to Newton's second law of motion, the force acting on a body is defined as the product mass and acceleration of the body.

F=m\cdot a

Rearrange the above expression for acceleration.

a=\dfrac Fm

Thus, <em>The acceleration of an object is equal to net </em><u><em>Force</em></u><em> acting on object dividing by object's </em><u><em>mass</em></u><em>.</em>

<em />

<u>Part 3:</u>

In a fluid, the particles are considered to be in a random motion all throughout the space available to them. Therefore, the fluid is considered to exert equal pressure in all the directions.

Thus,<em> The pressure exerted by a fluid at any given depth is exerted </em><u><em>Uniformly</em></u><em> in all directions.</em>

<em />

<u>Part 4:</u>

The momentum of a body is defined as the product of mass and velocity of the object.

p=m\times v

Substitute the values of mass and velocity.

\begin{aligned}p&=38\times2.2\\&=83.6\text{ kg}\cdot\text{m/s}\end{aligned}

Thus, <em>The momentum of the canoe is </em>\boxed{83.6\text{ kg}\cdot\text{m/s}}.

<u>Part 5:</u>

The given equation defines that the acceleration of a body is defined as the ratio of the change of velocity of a body to the time taken by the body to change the velocity.

a=\dfrac{v_f-v_i}{t}

Thus, <em>The acceleration of a body is defined as the ratio change in velocity to the time taken for change in velocity.</em>

<em />

Learn More:

  1. Net force acting on the refrigerator brainly.com/question/4033012
  2. Velocity of the soccer ball during the projectile as it was caught brainly.com/question/11023695
  3. Unit of the rotational velocity brainly.com/question/2887706

Answer Details:

Grade: High School

Subject: Physics

Chapter: Force and Pressure

Keywords:

momentum, force, mass, velocity, pressure, fluid, path, javelin, projectile, motion, acceleration, given depth, canoe, broke free, equation.

You might be interested in
If the voltage across a circuit of constant resistance is doubled, the power dissipated by that circuit will
densk [106]

Answer:

The voltage will quadruple

Explanation:

The power dissipated in a circuit is given by

P=\frac{V^2}{R}

where

V is the voltage

R is the resistance

In this problem, the voltage across the circuit is doubled:

V' = 2V

So the new power dissipated is

P'=\frac{V'^2}{R}=\frac{(2V)^2}{R}=4\frac{V^2}{R}=4 P

so, the power dissipated will quadruple.

6 0
3 years ago
Which type of circuit would be best to use for lights used for decorations? Question 1 options: Series circuit. One bulb could g
Masteriza [31]

Answer:

One bulb could go out and the strand will stay on.

Explanation:

In series circuit, there is only one path provided for the current to flow. So, all the lights are required to be in working condition, for the others to work. And if anyone light bulb goes out, the circuit will become incomplete and the rest of the strand will also go out. Because there is only one path for current flow which is now broken.

On the other hand, in parallel circuits, each light bulb has a separate connection with the source. Current path to each bulb is independent of the others. Therefore, if one bulb goes out, the rest of the strand will stay on.

So, the correct option is:

<u>One bulb could go out and the strand will stay on.</u>

6 0
3 years ago
Find a model for simple harmonic motion that has an initial displacement (t=0) of 0 inches, an amplitude of 5 inches, and a freq
Svetach [21]

Answer:

The equation of simple harmonic motion is y=5\sin{(8\pi t)}

Explanation:

Given that,

Amplitude = 5 inches

Frequency f= \dfrac{4}{3}

As per the question initial displacement is zero at t = 0 for sine curve.

The displacement is zero so the phase difference will be zero.

We know that,

The general equation of simple harmonic motion

y=A\sin(\omega t+\phi)

Where, A = amplitude

\omega = angular frequency

\phi = phase shift

We need to calculate the time period

Using formula of frequency

f=\dfrac{1}{T}

T=\dfrac{1}{f}

Put the value into the formula

T=\dfrac{1}{\dfrac{4}{3}}

T=\dfrac{3}{4}

We need to calculate the angular frequency

Using formula of angular frequency

\omega=\dfrac{2\pi}{T}

\omega=\dfrac{2\pi\times4}{3}

Put the value into the general equation

y=5\sin{(8\pi t)}

Hence, The equation of simple harmonic motion is y=5\sin{(8\pi t)}

7 0
3 years ago
Which substance does not produce carbon dioxide when reacted with acid?
Vanyuwa [196]
Lime is the answer

Glad to help
5 0
2 years ago
Read 2 more answers
During which section was the person moving at the highest speed? What was their speed? Defend your answer.
alexandr1967 [171]

Where's the person that the question is talking about?

5 0
3 years ago
Read 2 more answers
Other questions:
  • Explain why sedimentary rocks are found as a veneer covering large areas of the continental igneous rocks
    13·2 answers
  • Where is a trench most likely to occur?
    11·2 answers
  • If the particles of the medium are vibrating to and fro in the same direction of energy transport, then the wave is a ____ wave.
    8·1 answer
  • A ball rolls downhill with a constant acceleration of 4m/s squared. If it started from rest,it’s velocity at the end of 3 meters
    10·1 answer
  • Suppose you apply a force of 40 N to a 0.25​-meter-long wrench attached to a bolt in a direction perpendicular to the bolt. Dete
    5·1 answer
  • When a hypothesis is wrong, scientists often begin by revising the (blank)
    12·2 answers
  • What would be the difference between kinetic and potential energy​
    6·1 answer
  • Please help 30 points
    15·1 answer
  • A 20 N force acts for 10 s on a skateboard. What is the impulse imparted to the skateboard? What is the skateboard’s change in m
    10·1 answer
  • Is the following chemical reaction balanced?<br> 2H₂O2H₂O + 0₂<br><br> yes<br> no
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!