Vertical Projectile Motion Grade 12: Practice

In this lesson we do a grade 12 Vertical Projectile Motion practice question.
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Clearly when revising with Kevin math and science no need for a text book referral broh u are a book smart himself keep up the great work kev☺❤

[@Psht_mitchell]

Glaze

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[@kevinmathscience]

You are so welcome :)

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Thank you so much Kevin you are an Angel sent from heaven may God bless you 🥺❤️🔥and please Kevin can you please make a video about how to draw this graphs I'm begging you please Mr😭🥺🙏I'm really struggling with it

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This video has been eye opening to new ways (for me especially) thanks so much sir🤝❤️

[@kevinmathscience]

This question really summarizes the important parts of this chapter! :)

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[@kevinmathscience]

You are welcome😊

[@Envyius]

hi kevin for q3.3.1 you used the displacement as 21 but they mention that the time being used is from the roof to the roof of the car so would you not also use the displacement of 20.4m which is the displacement from the roof to the roof of the car ?

[@thobemcwango6914]

No that 0.6 M is from the roof of a car to the ground floor

[@lihlenombula5588]

with 3.4, would the answer not be 192,1N upwards, because since you chose upwards as positive, the 9,8 from multiplying mg would be negative.
please correct me if i’m wrong

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thank you soooo much

[@kevinmathscience]

You're welcome!

[@lordmadara4849]

Where can I download this paper

[@thobemcwango6914]

Whr can I download this paper Kevin.?.. U a star

[@eyethu_sama29]

Hello 👋
In question 3.4 i took downward as negative but my answer for final velocity was positive but it should've been negative because the ball was still going down.Please explain that to me Sir.
Vf² =(6.82)²+2(-9.8)(-21)
=+21.40 m.s¹

[@thobemcwango6914]

The direction doesn't metter because it's a magnitude besides if u say down is negative then ur Vf shuld be - VF

[@pninasmith9626]

Why is the displacement not 21 - 0.6m?

[@kevinmathscience]

In that particular part of the question we wanted the displacement from the top of building to the top of car. Look at the 21m carefully. They have shown us that it is from the top of building to top of car which is what we wanted :)

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If u dont mind can I ask where do u live sir

[@kevinmathscience]

Originally from Ladysmith (near Durban) but have lived just outside Cape Town (Somerset West) for the last 15 years.

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