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
igor_vitrenko [27]
4 years ago
5

A 22kg box slides down a 30.0 degree incline. If there is no friction, what is the acceleration of the box?

Physics
1 answer:
Rashid [163]4 years ago
6 0

Answer:

Acceleration of the box is 4.9 m/s².

Explanation:

The free body diagram is shown below.

The weight of the body can be resolved into two mutually perpendicular components as shown. The force responsible for sliding motion of the box along the incline is due to mg\sin \theta acting along the incline.

Therefore, as per Newton's second law of motion,

Net force = mass\times acceleration

Now, net force acting along the incline is only mg\sin \theta

Therefore,

mg\sin \theta=ma\\a=g\sin \theta

Now, g=9.8\textrm{ and } \theta = 30

Therefore, the acceleration of the box is given as:

a=9.8\times \sin(30)=9.8\times 0.5=4.9\textrm{ }m/s^{2}

Acceleration of the box is 4.9 m/s².

You might be interested in
IS
jarptica [38.1K]

Answer:

5.03

Explanation:

trust me

7 0
3 years ago
Which materials produce greater or fewer vibrations on a roller coaster?
mixer [17]
Steel materials produce less vibrations whilst less dense and more malleable parts produce more vibrations, e.g. the wooden part of the coaster itself.
3 0
3 years ago
What happens when you add a stronger battery to an electromagnetic PLEASE HELP
HACTEHA [7]

What happens when you put them together is you will make a stronger magnet that will pick up alot of metal

7 0
4 years ago
What force is necessary to pull a 10 kg sled across a horizontal surface at a constant velocity if the coefficient of kinetic fr
Igoryamba

Answer:

Any force greater than 24.5 N

Explanation:

To find the frictional force is the 1st step. this can be found by multiplying the coefficient of friction and the normal force. normal force can be found by multiplying gravity (we will say 9.8 m/s/s) and the mass which is 10. You then multiply the result by the coefficient of friction which is 0.25 and it leads us to an answer to 24.5 N. This means that if you pull with exactly 24.5 N, the sled wouldnt move. So you need a force greater than 24.5 N and we have our answer.

I hope I helped correct me if im wrong

3 0
3 years ago
Which of the following statements is NOT true about absorbents used to soak up different leaks and spills? A) They may be pickin
cricket20 [7]
The correct option is D.
Absorbents are products which are principally designed to soak up spills and leaks. There are different types of absorbents and they are designed to absorb different substances. The absorbents are typically equipped with specific features which make them suitable for absorbing specific substances. Thus, one can not mixed up different absorbent for use. Most absorbents are designed to soak up oil spills.
5 0
3 years ago
Other questions:
  • The ability to transfer energy explosively into force is _____.
    12·2 answers
  • Which best describes a relationship among the vectors? Vectors P and Py are components of vector Px. Vectors Px and Py are compo
    10·2 answers
  • Which statement will be true if you increase the frequency of a periodic wave?
    8·2 answers
  • What is the key difference between acentralized electrical distribution grid versus a distributed electrical distribution grid?
    8·1 answer
  • Which of the following is a variable property for a gas? Select all that apply.
    15·1 answer
  • An ant moves towards the plane mirror with speed of 2 m/s & the mirror is moved towards the ant with the same speed. What is
    9·1 answer
  • uniform ladder of length 6.0 m and weight 300 N leans against a frictionless vertical wall. The foot of the ladder isplaced 3.0
    13·1 answer
  • Help asap please! thanks:)
    9·1 answer
  • A beam of white light passes through a uniform thickness of air. If the intensity of the scattered light in the middle of the gr
    6·2 answers
  • An object moving with a speed of 35 m/s and has a mass of 75kg what is the kinetic energy
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!