Physics, 21.07.2019 10:10 laurachealsy923

Ahorizontal force of 50 n is required to push a wagon across a sidewalk at a constant speed.
a. what is the net (unbalanced) force acting on the wagon?
b. what forces are acting on the wagon?
c. if the mass on the box increased, use newton's law to explain what must change to get the object moving at constant speed.

Answers: 3

Show answers

Answers

Answer from: tristanortonubca

A) The net unbalanced force acting on the wagon is; F_net = 50 N

B) The forces acting on the wagon are;

Applied Force = 50 N

Frictional Force = 50 N

C) What will happen if mass is increase is that;

frictional force will increase.

Formula for force is;

Force = mass x acceleration

F = ma

A) We are told that the speed is constant and at constant speed, acceleration is zero. Thus; F_net = 0 N

B) We are told that the force required to push the wagon at constant speed is 50 N.

Now, from newtons third law of motion, it states that to every action, there is an equal and opposite reaction.

Thus, there will be an equal opposite reaction which will be the frictional force. Thus; F_f = 50 N

C) Frictional force has the formula;

F_f = μmg

So if the mass is increased, the frictional force will also increase.

Read more at; link

Answer from: laylay2380

(a) The net force acting on the wagon is zero (0).

(b) The forces acting on the wagon are, the applied horizontal force on the wagon and frictional force between the wagon and the sidewalk.

The given parameters;

the horizontal force applied on the wagon, F = 50 N

The net horizontal force acting on the wagon is given as;

$\Sigma F_x = 0\\\\F - F_k = ma$

where;

Fk is the frictional force between the wagon and the sidewalkm is the mass of the wagona is the acceleration of the wagon

At constant speed, the acceleration of the wagon = 0

$F - F_k = m(0)\\\\F- F_k = 0\\\\$

Thus, the net force acting on the wagon is zero (0).

(b) The forces acting on the wagon are;

the applied horizontal force on the wagonfrictional force between the wagon and the sidewalk

F = ma

$F = \frac{m(\Delta v)}{t} \\\\\Delta v =\frac{Ft}{m} \\\\\frac{F_1}{m_1} = \frac{2F_1}{2m_1}$

Thus, as the mass increases, the applied force should increase by equal amount to keep the moving at constant speed.

Learn more here:link

Answer from: Quest

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

Do 30 i will mark as the brainliest answer

Answer from: Quest

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

Another question on Physics

Physics, 21.06.2019 18:00

How are momentum and impulse related? impulse is a whim to do something, while momentum keeps it going impulse is another name fore instantaneous momentum the impulse acting on and object is equal to the change of momentum it causes. the impulse that acts on and object is the momentum that results.

Answers: 2

Answer

Physics, 21.06.2019 19:30

Why there is no inductive reactance in dc circuits

Answers: 1

Answer

Physics, 21.06.2019 20:10

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Answers: 2

Answer

Physics, 22.06.2019 00:00

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Answers: 2

Answer

You know the right answer?

Ahorizontal force of 50 n is required to push a wagon across a sidewalk at a constant speed.
a...

Questions