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
Hitman42 [59]
3 years ago
7

A box is dropped onto a conveyor belt moving at 3.2 m/s. If the coefficient of friction between the box and the belt is 0.28, ho

w long will it take (in s) before the box moves without slipping
Physics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

t = 1.16 s.

Explanation:

Given,

speed of conveyor belt, v = 3.2 m/s

coefficient of friction,f = 0.28

Using newton second law

f = ma

and we also know that frictional force

f = μ N

f = μ m g

equating both the force equation

a = μ g

a = 0.28 x 9.81

a = 2.75 m/s²

Using Kinematic equation

v = u + at

3.2 = 0 + 2.75 x t

t = 1.16 s.

Time taken by the box to move without slipping is 1.16 s.

You might be interested in
Why is the same side of the Moon always visible from Earth?
son4ous [18]

Answer:

Explanation:

Answer

The true fact is that C is what happens in outer space.  Both rotations take 27.3 days.  

A: The exact opposite is true. It does rotate about it's axis.

B: Again this is just plain false. Given the way we observe it, the moon must be rotating around the earth.

D. they don't. 27.3 hours and 24 hours are not the same.

8 0
2 years ago
You do 20 J of work pushing a crate up a ramp. If the output work from the inclined plane is 11 J, then what is the efficiency o
fomenos

Answer:

55%

Explanation:

take efficiency=power output/power input multiply by 100%

5 0
3 years ago
If measuring experimental results, what can you predict about the work output of a 1200 Watt hair dryer?
Elden [556K]
I am 90% sure it’s A
3 0
3 years ago
Read 2 more answers
How much work is accomplished when a force of 250 N pushes a box across the floor for a distance of 50 meters?
IrinaK [193]
Work = force * distance
and newton*meters = Joule

In this case,  work = 250N*50m = 12500 J

So the answer is D) 12,500 J

3 0
3 years ago
If the car travels thrice(3times) around the track,who much is the total distance covered?​
Katyanochek1 [597]
What does thrice mean not being mean or anything just saying so I can help with the question
5 0
2 years ago
Other questions:
  • The volume of a cylindrical tin can with a top and a bottom is to be 16π cubic inches. If a minimum amount of tin is to be used
    14·1 answer
  • What is the difference between weight and mass?
    10·2 answers
  • A state highway was constructed over wetlands. The state obtained a permit to fill the existing wetlands in accordance with the
    13·1 answer
  • A pendulum has 573 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom o
    13·1 answer
  • A sound wave traveling eastward through the air causes the air molecules to
    7·1 answer
  • A young kid of mass m = 36 kg is swinging on a swing. The length from the top of the swing set to the seat is L = 3.5 m. The boy
    10·1 answer
  • Point charges 1 mC and −2 mC are located at (3, 2, −1) and (−1, −1, 4), respectively. Calculate the electric force on a 10 nC ch
    7·2 answers
  • Give three factors that affected the kinetic energy of the person as she reached the bottom
    14·1 answer
  • Show that the input and output work done by the pistons is the same during "Pascal's principle" derivation
    8·2 answers
  • What were two reasons that the Krystal Beslanowitch case was finally closed?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!