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
atroni [7]
3 years ago
9

A 2-kg bowling ball rolls at a speed of 10m/s on the ground whats its ke

Physics
1 answer:
kondaur [170]3 years ago
3 0

Answer:

Explanation:

I wonder what level of physics you are taking? If this is a beginning course (which I'm going to assume) then the KE is

KE = 1/2 m v^2

KE = 1/2 * 2kg * (10 m/s)^2

KE = 100 Joules.

If you are in an upper level course and need to take into account the rotational motion, leave a note.

You might be interested in
A 57 g ice cube can slide without friction up and down a 33 ∘ slope. The ice cube is pressed against a spring at the bottom of t
beks73 [17]
The springs stored energy is transferred to the cube as kinetic energy and then by the slop the KE is converted to height energy. 

<span>0.5 . k . x^2 = 0.5 . m . v^2 = m . g . ∆h </span>

<span>0.5 . 50 . (0.1^2) = 0.05 . 9.8 . ∆h </span>

<span>∆h = 0.51 m = 51 cm </span>

<span>This is the height gained </span>
<span>Distance along the slope = ∆h / sin 60 = 0.589 = 59 cm </span>

<span>In the second case, the stored spring energy is converted into height energy AND frictional heat energy. </span>

<span>The height energy is m . g . d sin 60 where d is the distance the cube moves along the slope. </span>

<span>The Frictional energy converted is F . d </span>

<span>F ( the frictional force ) = µ . N </span>

<span>N ( the reaction to the component of the gravity force perpendicular to the surface of the slope ) = m . g . cos60 </span>

<span>Total energy converted </span>

<span>0.5 . k . x^2 = (m . g . dsin60) + (µ . m . g . cos60 . d ) </span>

<span>Solve for d </span>

<span>d = 0.528 = 53 cm</span>
5 0
3 years ago
50POINTS PLEASE HELP SPACE QUESTION
leonid [27]
Regardless of the time of year, the northern and southern hemispheres always experience opposite seasons. This is because during summer or winter, one part of the planet is more directly exposed to the rays of the Sun than the other, and this exposure alternates as the Earth revolves in its orbit.
4 0
3 years ago
Read 2 more answers
Todo sistema heterogêneo é bifásico
strojnjashka [21]
I don't understand the language.....
3 0
3 years ago
Ice core samples are used to measure…
blsea [12.9K]

Answer:

the correct answer is A

6 0
3 years ago
Read 2 more answers
A ball is dropped out of a window and hits the ground at 14.5 m/s. How long did it take to fall to the ground?
Lerok [7]

Answer:

Explanation:

Use the one-dimensional equation:

v_f=v_0+at which says that the final velocity of a falling object is equal to its initial velocity times the acceleration of gravity times the time it takes to fall. We have the final velocity, -14.5 (negative because its direction is down and down is negative), initial velocity is 0 (because it was held still by someone before it was dropped), and acceleration is -9.8 (negative again, because direction is down while acceleration increases). Filling in:

-14.5 = 0 - 9.8t and

-14.5 = -9.8t so

t = 1.5 seconds

3 0
3 years ago
Other questions:
  • What type of wave passes through the spring in the frog toy? Why?
    7·1 answer
  • Which material is used to reduce friction ?
    12·1 answer
  • Pleaseee HElpp!!!!!!!
    6·2 answers
  • If the mass of the egg is 60 grams (0.06 Kg), and the mass of your device is 0.5 Kg, calculate the Force of Gravity on your devi
    9·1 answer
  • An object of mass m is attached to a vertically oriented spring. The object is pulled a short distance below its equilibrium pos
    7·1 answer
  • Select the correct equations that show that a freely falling rock drops a distance of 80 m when it falls from rest for 4 s .
    15·1 answer
  • Please select ALL THAT APPLY
    13·1 answer
  • Identify the ways in which carbon is added to the atmosphere?
    7·2 answers
  • Determine the number of milliliters in a volume of 2.81 fluid ounces
    12·1 answer
  • Air bubbles being released when breathing from the mouth
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!