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2 years ago

If an object has zero acceleration, does it have to have zero velocity?

Physics

1 answer:

adelina 88 [10]2 years ago

3 0

Answer:

Yes, the velocity would also be zero.

Explanation:

Acceleration is the change in velocity over time, therefore, there has to be a change in velocity for something to accelerate. which means without acceleration, the object has no velocity.

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What is a force on the object if it has a mass of 10.41 kg and an acceleration of 6.5 m/s2

Fudgin [204]

To determine the force of the system, we use Newton's Second Law of motion which relates force and mass where they are directly proportional and the constant of proportionality is the acceleration. We calculate as follows:

F = ma
F = 10.41 kg ( 6.5 m/s^2 )
F = 67.67 kg m / s^2 or N

4 0

2 years ago

On planet X, an object weighs 7.04 N. Onplanet B where the magnitude of the free-fallacceleration is 1.91g(whereg= 9.8 m/s2isthe

timurjin [86]

<h2>Mass of object in Earth is 1.37 kg</h2>

Explanation:

On planet B where the magnitude of the free-fall acceleration is 1.91g , the object weighs 25.74 N.

We have

Weight = Mass x Acceleration due to gravity

On planet B

25.74 = Mass x 1.91 g

25.74 = Mass x 1.91 x 9.81

Mass = 1.37 kg

Mass is constant for an object. It will not change with location.

Mass of object in Earth = Mass of object in Planet B

Mass of object in Earth = 1.37 kg

4 0

3 years ago

A 120 Ohm resistor is connected in

ser-zykov [4K]

Answer:

I=0.05 Amper

v=9 volts

Explanation:

I=V/R1

l=6/120=0.05Amper

voltage of 180ohm =IR2=0.05×180=9volts

7 0

2 years ago

Read 2 more answers

A patricle is accelerated uniformly from rest, so that after 10 seconds it has a speed of 15m/s find its acceleration and the di

grin007 [14]

Answer:

Its acceleration is 1.5 $\frac{m}{s^{2} }$ and the distance it has covered is 150 m.

Explanation:

Acceleration is a quantity that indicates the variation in speed of a moving body as time passes. That is, acceleration relates changes in velocity with the time in which they occur.

The average acceleration is defined as the relationship between the variation or change in the speed of a mobile and the time used in said change:

$acceleration=\frac{change in speed}{time}$

In this case:

change in speed= final speed - initial speed= 15 m/s - 0 m/s= 15 m/s
time= 10 s

Replacing:

$acceleration=\frac{15 \frac{m}{s} }{10 s}$

and solving you get:

acceleration= 1.5 $\frac{m}{s^{2} }$

Speed is a quantity that expresses the relationship between the space traveled by an object and the time used for it. This is:

$speed=\frac{distance}{time}$

So the distance can be calculated as:

distance= speed* time

In this case:

speed= 15 m/s
time= 10 s

Replacing:

distance= 15 m/s* 10 s

and solving you get:

distance= 150 m

Its acceleration is 1.5 $\frac{m}{s^{2} }$ and the distance it has covered is 150 m.

8 0

2 years ago

A battery charges a parallel-plate capacitor fully and then is removed. The plates are then slowly pulled apart. What happens to

White raven [17]

Answer:

<h2>The potential difference increases </h2>

Explanation:

from the relation $E= \frac{V}{d}$

where E= electric field (force per coulomb)

V= voltage

d= distance

Hence the voltage is going to be V= E×d.

Therefore this means that increasing the distance increases the voltage.

3 0

3 years ago