Grade 12 work energy and power : Work practice questions

[@Sparkle352]

Prep for term 2👌

[@AmukelaniMakhanya]

Good luck bro

[@viwemakapela3471]

matric 22 gather here

[@banelemkwanazi7507]

This is me understanding work energy and power just before writing physics within 4 hours...thanks alot ♥️

[@basetsanasetshedi5705]

This is me today😔

[@iamsamumbatha]

Yhooo it’s the second day of schoo, and it feels like I’ve been at school for 5 weeks already

[@aaronnortje3474]

Now it feelings like 6 months

[@johnsfamilyadventures3896]

Thank you...for someone with a poor Physics background, this is helping to make complete sense.

[@kevinmathscience]

Wonderful!! :)

[@nsovomashamba813]

we love you kevin❤

[@mnqobingongwana174]

I dont know how to thank you for this man. 🖤🖤thank u man

[@kevinmathscience]

No problem 😊 It is a big pleasure!

[@SurprisedHorseRacer-os7yz]

Normal force FN=90°
Force applied FA=0°
Friction force ff/fk=180°
Force of gravity Fg/w=90°
I hope this helps .. l learnt this while l was doing matric last year 🤗

[@deemab5077]

Well, it does depend on the direction of motion.

[@NombuzoMwenda-ue1dz]

This is really helpful😊..thanks Kevin for teaching with such patience and making sure we understand.. you're truly a blessing

[@kurtdavids8221]

Helped alot bro thanks

[@kevinmathscience]

No problem 👍

[@cloets9276]

Thanks for this.

[@kevinmathscience]

My pleasure!

[@GalaletsangLerefolo-pb7ff]

You are the best Sir!😭😭♥️

[@letayaannehammond3508]

Thank you so much!💓

[@kevinmathscience]

No problem 😊

[@jenniferikeakor9135]

Thanks❤️

[@mira.the.believer]

Hello Kevin at 3:21 is it necessary for us to know this formula ? The Cos part Is kinda confusing for me, is it okay if we just stick to subtracting the two or would we get penalized?

[@MM-rx5py]

Chemical engineering major busy revising on physics

[@kevinmathscience]

I have a Chem Eng. degree! :)

[@nk_ispretty]

Hi Kevin,on number 1B why did we use 180° as our angle I'm a bit confused

[@noxolonoxolo2487]

Hi uncle K I didn't understand first answer ...is frictional force doesn't oppose the motion? Since a box being pushed to the right? How cos theta will be a zero please onyone here can help I'm stuck🤦🏽‍♀️

[@rotondwamudau5178]

Hi
The reason why cos theta is zero is because the forces are moving in the same direction

[@kyledietrich8560]

I have a question. When the Calc has been completed and you have your answer can we just leave it at joules or will we be marked down.

[@zoliswa_nqobile]

But you got to tell us how we substitute on that (Fnet) we're a bit confused when you write 10-4 why are we now minusing and stuff

[@jamey-leighshubisi5005]

Fnet means all forces added together. Force applied(10) is positive because it's moving in the direction of motion ,but Frictional force (4) is opposing motion so it becomes negative,the sum would be like 10+(-4)

[@Gosiame.]

On first question I think frictional force is negative

[@SebabatsoNtsala-_25]

I don't understand why you use 4 of the frictional force

[@nikitamagwanya8261]

It's given in the scenario 😅

[@thabanggama]

Sir do you have a video of the work done on a bullet please help

[@aabee3538]

Writing physics tomorrow 😭

[@dione_vlogs]

Same