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
Lina20 [59]
2 years ago
8

If a 7 kg bowling ball is lifted 2 m into the air and dropped, what speed will it strike the ground? (

Physics
1 answer:
Naily [24]2 years ago
4 0

Answer:

6.32m/s

Explanation:

note:Now these calculations are based in the fact that acc. due to gravity is 10m/s²

okay so I'm thinking you think the speed of a body depends on the mass of the body also,umh... well it doesn't at all!

when two bodies of different masses fall from the same height,they fall at the same time( this is just to say)

now enough of the talking let solve....

so the ball was dropped .ie from rest to the ground through a distance of 2m,

the formula for calculating the distance if a body moving in a straight line is given by:

S=ut + ½at² where u is initial velocity, a is acceleration ( of the body or due to gravity, but since its falling freely under the influence of gravity its " we use the acceleration due to gravity ,which is 10m/s²) and t is the time taken to cover the distance.

from our question the ball was dropped from rest thus its u is 0 therefore we use this equation to find the time it took to touch ground (S=½at²)

solving ....

we get t to be 0.632s

to find the speed we substitute t in the equation below:

V=u+at ,but since u=0

V=at =10•0.632=6.32m/s

therefore the speed the body uses to strike the ground is 6.32m/s

You might be interested in
What pollutant forms when automobile emissions react with oxygen gas and ultraviolet rays?
creativ13 [48]

Ozone is a molecule that consists of three oxygen atoms. When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen. A freed oxygen atom then combines with another oxygen molecule to form a molecule of ozone.  Hydrocarbons and nitrogen oxides come from great variety of industrial and combustion processes. Motor vehicle exhaust and industrial emissions, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC that acts as a precursor of ozone. In urban areas, the number of automobiles are more and therefore, more production of such harmful gases. These gases in presence of sunlight leads to the formation of bad ozone.

6 0
3 years ago
Jamie has a mass of 35kg what is her weight on earth in newtons
nevsk [136]
Gravity on Earth = 10N/Kg
10N/Kg * 35Kg =350N
8 0
3 years ago
Read 2 more answers
Calculate the electric field at the location of a charge if the electric force is 10 newtons and the charge on the particle is 6
kolezko [41]

I think it may be c, 1.7 v. I work with electricity a lot.


6 0
3 years ago
What is the area
bearhunter [10]

Answer:e3

explanation: the answer is 200

4 0
2 years ago
A heavy boy and a lightweight girl are balanced on a massless seesaw. If they both
Len [333]

Answer:

D. Nothing will happen; the seesaw will still be balanced.

Explanation:

D. Nothing will happen; the seesaw will still be balanced. Since both toruqes or momentums respect to the center have changed in the same amount (one-half their original distance) the seesaw will remain balanced, if the children change distance in a different amount then it will be out of balance

3 0
3 years ago
Read 2 more answers
Other questions:
  • An instrument that measures and detects vibrations in earth is known as a _______.
    9·2 answers
  • Shows a few energy levels of the mercury atom. one valence electron is always in the 6s state; the other electron changes states
    8·1 answer
  • Unlike other states of matter, what expand to fill their containers
    13·2 answers
  • What is the Ultraviolet Catastrophe?​
    11·1 answer
  • Gravity: The force due to gravity is F=mg where g=9.80 m/s². A. Find the force due to gravity on a 41.63-kg object. B. The force
    13·1 answer
  • Which property of light would provide evidence for the idea that light is a wave?
    8·1 answer
  • When performing Tai Chi, The breathing technique utilized is called “Belly Breathing”
    7·1 answer
  • Assapp!!!’!!!!!!!! !!!!!!
    7·1 answer
  • Please help me out with these !! 50 points would greatly appreciate it.
    13·2 answers
  • An empty parallel plate capacitor is connected between the terminals of a 18.8-V battery and charges up. The capacitor is then d
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!