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
Margaret [11]
2 years ago
13

A box, initially at rest, has 36.7 N of force exerted on it for 2.81 s. If the box has a mass of 7.41 kg, what was its velocity

at this time?
Physics
2 answers:
ElenaW [278]2 years ago
8 0

Answer:

13.91 m/s

Explanation:

First we need to find the acceleration:

Acceleration = Force/mass

Acceleration = 36.7N/7.41 kg

Acceleration = 4.95 m/s² (rounded to two decimal places)

Then we find the velocity:

Velocity = Acceleration * Time

Velocity = 4.95 m/s² * 2.81 s

Velocity = 13.91 m/s (rounded to two decimal places)

Oksanka [162]2 years ago
7 0

Hi there!

We can begin by calculating the acceleration of the box using Newton's Second Law:

\large\boxed{\Sigma F = ma}

∑F = Net force (N)

m = mass (kg)

a = acceleration (m/s²)

Rearrange to solve for acceleration:

\frac{\Sigma F}{m} = a\\\\\frac{36.7}{7.41} = 4.95 m/s^2

Now, we can use the kinematic equation:

v_f = v_0 + at

vf = Final velocity (? m/s)

v0 = initial velocity (0 m/s, from rest)

a = acceleration (m/s²)

t = time (s)

Plug in the values:

v_f = 0 + 4.95(2.81)\\\\v_f = \boxed{13.91 m/s}

You might be interested in
When an object is placed 30.0 cm in front of a concave mirror, a real image is formed 60.0 cm
Marrrta [24]

Answer:

1 / f = 1 / o + 1 / i = (i + o) / o * 1

f = o * i / (o + i) = 60 * 30 / (60 + 30) = 1800 / 90 = 20 cm

Both the object and image are in positive space for a mirror

3 0
2 years ago
What was the most serious money problem faced by people in the early United States?
alexira [117]
<span>♥B. There was no single medium of exchange.♥
Take a look at the saying </span><span>"Not worth a Continental".
It referrers to the fact that </span><span>currency issued by the Continental Congress was usually just a promise to pay.
Leaving your answer with ♥B♥</span>
5 0
3 years ago
A small rubber ball is thrown at a heavier, larger basketball that is still. The small ball bounces off the basketball. Assume t
meriva
Part A.
The forces are the same because the force from the smaller ball it transferring its Energy through the basketball and it's rebounding as Connecticut Energy back up to the smaller ball
6 0
3 years ago
Read 2 more answers
Which trait is determined entirely by heredity ?
quester [9]
Shape of the nose is entirely hereditary, as genes have nothing to do with any of the other attributes.
7 0
3 years ago
Read 2 more answers
Use the image to determine the volume of the rock.
maria [59]

Answer:

12 ml

Explanation:

The initial volume in the cylinder is 20 ml

 adding the rock adds volume to the cylinder

       the new volume is 32 ml .....the increase in volume is the volume of the rock :   32 - 20 = 12 ml    volume of rock

6 0
2 years ago
Other questions:
  • A bicycle has a momentum of 36 kg • m/s and a velocity of 4 m/s. What is the mass of the bicycle? 9 kg 32 kg 40 kg 144 kg
    7·2 answers
  • An Alaskan rescue plane traveling 42 m/s
    13·1 answer
  • Which layer of ground contain organic matter and tiny rock particles
    8·1 answer
  • Tracking scores from past assignments
    6·2 answers
  • Two identical stars with mass M orbit around their center of mass. Each orbit is circular and has radius
    10·1 answer
  • A tree limb of mass 12 kg falls straight down. If air resistance exerts 27 N of force on the limb as it falls, what is the net f
    5·2 answers
  • You are designing a system for moving aluminum cylinders from the ground to a loading dock. You use a sturdy wooden ramp that is
    14·2 answers
  • Jane is collecting data for a ball rolling down a hill. she measure out a set of different distances and then proceeds to use a
    9·1 answer
  • Help me with this equation please
    11·1 answer
  • What minimum volume must the slab have for a 75.0 kgkg woman to be able to stand on it without getting her feet wet
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!