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
Simora [160]
3 years ago
12

A block of mass 12.2 kg is sliding at an initial velocity of 3.9 m/s in the positive x-direction. The surface has a coefficient

of kinetic friction of 0.173. (indicate the direction with signs of your answer) (a) What is the force of kinetic friction in N acting on the block? (b) What is the block's acceleration in /s^2? (c) How Far will it slide (in m) before coming to rest? Plz answer as soon as possible
Physics
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

Explanation:

a) Force of friction = μ R where μ is coefficient of kinetic friction and R is reaction force

R = mg where m is mass of the block

Force of friction F = μ x mg

= .173 x 12.2 x 9.8

= 20.68 N

b ) Only force of friction is acting on the body so

deceleration = force / mass = 20.68 / 12.2 = 1.7 m /s²

acceleration = - 1.7 m /s²

c )

v² = u² - 2 a s

v = 0 , u = 3.9 m /s

a = 1.7 m /s

0 = 3.9² - 2 x 1.7 x s

s = 4.47  m

You might be interested in
Which phenomenon occurs when light falls on a smooth mirror?
muminat
That would be reflection.
6 0
3 years ago
An astronaut 100m from the spaceship observes a 200kg meteoroid that drifts toward the shop at 10m/sec. If the astronaut can gai
Fynjy0 [20]

No

Refer to the attachment for calculations

8 0
3 years ago
Help me please forget about you and she was
ra1l [238]

The figure is showing a volume of 2.4 mL becuase it's feel 4 little segments.

Therefore, the answer is 2.4 mL.

5 0
1 year ago
How many moles are in 73.4 grams of Phosphorus?
mylen [45]
23.2


hope this helped
4 0
3 years ago
Which fact is NOT true about gravity?
Arturiano [62]
The correct answer is B.
5 0
3 years ago
Read 2 more answers
Other questions:
  • The speed of a box traveling on a horizontal friction surface changes from vi = 13 m/s to vf = 11.5 m/s in a distance of d = 8.5
    11·1 answer
  • A nonconducting sphere has radius R = 2.81 cm and uniformly distributed charge q = +2.35 fC. Take the electric potential at the
    7·1 answer
  • What are the movements of boiling water? I'm looking for if they speed up, like that sort of thing. Not how, not why, just what
    5·1 answer
  • A street light is mounted at the top of a 15-ft-tall pole. a man 6 ft tall walks away from the pole with a speed of 4 ft/s along
    6·1 answer
  • A ball is falling from the second floor balcony to the floor below
    14·2 answers
  • How can the potential energy in magnets be used to create kinetic energy in an object without making contact?
    8·1 answer
  • Why did earth most likely form into distinct, separate layers? (HELP ASAP PLZ)
    11·2 answers
  • By what factor will the Electrostatic Force between two charged objects change when the amount of charge on both objects doubles
    7·1 answer
  • WILL MARK THE BRAINLIEST <br> pls help
    15·2 answers
  • the mass of an object is 90 kg calculate weight of the same object on the surface of the moon.(acceleration due to gravity on th
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!