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Please Help Us Solve This Physics Questions - Education - Nairaland

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Pls Help Solve This PHYSICS / Can You Solve This Physics Question? / A Genius Should Help Me With This Physics Calculation. (2) (3) (4)

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Please Help Us Solve This Physics Questions by banky200: 11:30am On Mar 09
Please help us solve this physics questions
Number 8 and 11

Re: Please Help Us Solve This Physics Questions by MichaelSokoto(m): 1:10pm On Mar 09
very simple!

I for quickly do am 4 u buh am busy at d moment.

Re: Please Help Us Solve This Physics Questions by MrBrownJay1(m): 8:20pm On Mar 09
how are you ever gonna learn if you do your homework for you?!

here is for your education of the day (AI is your friend):

11) To calculate the amount of work needed to stop a bullet, you can use the work-energy principle which states that the work done on an object is equal to its change in kinetic energy. The kinetic energy of the bullet is given by ½ mv², where m is the mass of the bullet and v is its velocity. As the bullet is brought to a stop, its kinetic energy goes to zero, thus the work done is equal to the initial kinetic energy of the bullet.
Re: Please Help Us Solve This Physics Questions by TOM208: 11:09pm On Mar 09
8. P.E = mg(h1-h2)
I use g=9.8

Note v square
Substitute for all the given values
h =5.1m
Elastic stored energy to Kinetic energy
Work done=Fs

Note: V square

Change m=20g to m=0.02kg
Since 1000g equivalent 1kg
When you substitute correctly
Your answer should be 225joules

All the best

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