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
Trava [24]
1 year ago
13

A net force of 2800 N is applied to a 1400 kg automobile at rest. The speed of the automobile after 10 s will be:

Physics
1 answer:
Svetach [21]1 year ago
6 0

The speed after 10 s is 20 m/s

<h3>What is the speed after 10 s?</h3>

Given that we have the following;

force = 2800 N

Mass = 1400 kg

time = 10 s

Recall that;

F = ma

F = force

m = mass

a = acceleration

a = F/m

a =  2800 N/1400 kg

a = 2 m/s^2

Now;

v = u + at

v = ??

u = 0 m/s

a= 2 m/s^2

t = 10 s

v = at

v = 2 * 10

v = 20 m/s

Learn more about the speed:brainly.com/question/28224010

#SPJ1

You might be interested in
High energy waves have short wave lengths, true or false?
Anna71 [15]
True, the wavelength dies down due to high frequency and low amptitude. 
5 0
3 years ago
Which kind of energy transformation occurs during skydiving? A) mechanical to gravitational B) gravitational to kinetic C) kinet
Aleks [24]

B) gravitational to kinetic

Explanation:

The skydiver, when he is located at a certain height h above the ground, possesses gravitational potential energy, equal to:

U=mgh

where m is the mass of the skydiver, g is the gravitational acceleration and h is the height above the ground. As he falls, its height h decreases, while his speed v increases, so part of the gravitational potential energy is converted into kinetic energy, which is given by

K=\frac{1}{2}mv^2

so, we see that as v increases, the kinetic energy increases. Therefore the correct answer is

B) gravitational to kinetic

7 0
3 years ago
Read 2 more answers
A brick of mass 4 kg hangs from the end of a spring. When the brick is at rest, the spring is stretched by 3 cm. The spring is t
jeka57 [31]

Answer:

Explanation:

Let s be displacement from equilibrium position . Restoring force

m d²s / dt² = - k s

d²s / dt² = - k /m  s

Put k /m  = ω

d²s / dt² + ω² s = 0

The solution of this differential equation

= s = A cosωt

Now when t = 0 ,  s = 2 cm

A =  2 cm

Putting the values we have

2 = A cos 0

A = 2 cm

s ( t) = 2 cos ωt

3 0
3 years ago
The gradient of a displacement-time graph gives
Drupady [299]

Answer:

Velocity

Explanation:

The gradient= change in velocity

——————————

Change in time

7 0
3 years ago
What kind of education is required to be a ocean engineer?
ra1l [238]
To become an ocean engineer, the job would require a B<span>achelors degree in ocean engineering.

Hope this helps.</span>
4 0
3 years ago
Other questions:
  • Periodic trends vary as we move across the periodic table. In general, as you move across a row in the periodic table A) ionic s
    13·2 answers
  • Which type of radiation travels at the speed of light and penetrates matter easily?
    10·2 answers
  • The purpose of a cell (battery) is to: Question 2 options: store chemical energy and transfer it to thermal energy when a circui
    12·1 answer
  • Cat blames herself for her recent job loss. Her therapist suggests that she is depressed because she blames herself rather than
    6·1 answer
  • (b) A 0.13−kg baseball thrown at 100 mph has a momentum of 5.9 kg · m/s. If the uncertainty in measuring the mass is 1.0 × 10−7
    6·1 answer
  • Car decelerates uniformly and comes to a stop after 10 s. The car's average velocity during deceleration was 50 km/h. What was t
    15·1 answer
  • PLEASE HELP FAST Five-gram samples of brick and glass are at room temperature. Both samples receive equal amounts of energy due
    12·1 answer
  • In concave lenses a Distance object appears ​
    5·1 answer
  • What does it mean that energy cannot be created or destroyed?
    7·2 answers
  • A boy throws a ball vertically up it returns the ground after 10 seconds find the maximum height reached by the ball
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!