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
Lena [83]
3 years ago
5

a 2.0 kg block slides on the horizontal, frictionless surface until it counters a spring force constant with

Physics
1 answer:
icang [17]3 years ago
8 0

Complete question:

a 2.0 kg block slides on the horizontal, frictionless surface until it counters a spring with force constant of  955 N/m. The block comes to rest after compressing the spring a distance of 4.6 cm. Find the initial speed (in m/s) of the block.

Answer:

The initial speed of the block is 1.422 m/s

Explanation:

Given;

mass of the block, m = 2.0 kg

force constant of the spring, K = 955 N/m

compression of the spring, x = 4.6 cm = 0.046 m

Apply Hook's law to determine applied force on the spring;

F = Kx

F = (955 N/m)(0.046 m)

F = 43.93 N

Apply Newton's 2nd law to determine the magnitude of deceleration of the block when it encounters the spring;

F = ma

a = F / m

a = 43.93 / 2

a = 21.965 m/s²

Apply kinematic equation to determine the initial speed of the block;

v² = u² + 2ax

where;

v is the final speed of the block = 0

u is the initial speed of the block

x is the distance traveled by the block = compression of the spring

a is the block deceleration = -21.965 m/s²

0 = u² + 2(-21.965 )(0.046)

0 = u²  - 2.021

u² =  2.021

u = √2.021

u = 1.422 m/s

Therefore, the initial speed of the block is 1.422 m/s

You might be interested in
A ball of radius 0.220 m rolls along a horizontal table top with a constant linear speed of 3.70 m/s.?
4vir4ik [10]
<span>16.82 x 0.04 = 0.67 rad
I hope I helped if you really need I can explain to you how I got that answer but Thats correct im sorry it took 2 days for me to find this answer but if you or anybody else still needs the answer for this question here it is :) have a fantastic day guys Spring Break is coming up soon :)</span>
6 0
3 years ago
Whats the force of a pitching machine on a baseball
ira [324]

Answer:

kinetic

Explanation:

8 0
2 years ago
Read 2 more answers
an object tied to the end of the string moves in a circle . the force exerted by the string depends on the mass of the object it
otez555 [7]

Answer:Fc=mv^2/r

Explanation:

6 0
3 years ago
8 a Name the bones that articulate (join together) in the knee joint
Marianna [84]

Answer:

The Femur and the Tibia

8 0
3 years ago
A type of star called a red dwarf gets its name because it is a relatively small star that appears redder than the Sun when view
weeeeeb [17]

Answer:

option (b) reflect

make me brainliest

5 0
3 years ago
Other questions:
  • If a compound forms by ionic bonding, which is not true?
    11·2 answers
  • Logs sometimes float vertically in a lake because one end has become water-logged and denser than the other. What is the average
    5·1 answer
  • How does increasing the distance between charged objects affect the electric force between them? the electric force increases be
    12·2 answers
  • If a distance-time graph contains the point (4, 15), what does that tell you about the runner?
    13·1 answer
  • If the mass of a material is 76 grams and the volume of the material is 14 cm3, what would the density of the material be?
    14·1 answer
  • Urgent! Based on the diagram below, what color will each pigmented paper appear to be to an observer?
    5·1 answer
  • Bumper cars A and B undergo a collision during which the momentum of the combined system is conserved.
    12·1 answer
  • Suppose that 2.5 moles of an ideal gas are in a chamber in equilibrium at temperature 310 K and volume 0.5 m3. 1) What is the pr
    6·1 answer
  • There are very, very few times that scientists make estimations because they don’t have enough time or data to test all the poss
    11·1 answer
  • I drove from Oklahoma to California (1452.9 miles) in 23 hours? What was my average speed?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!