Average velocity and speed worked example | One-dimensional motion | AP Physics 1 | Khan Academy

Sal solves a word problem to find average velocity and speed of an object in one-dimension.
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[@thejopeaterpals8961]

hello this math problem is amazing you are really helping people

[@vctor6768]

Students should also know they are two confusing formula for Av. Velocity Av=displacement/time Av=(intial Velocity+finally velocity)/2

[@BlackMamba0175]

With due respect I believe the formula for Average Velocity is Displacement/Time Elapsed. We need to find the pig's displacement before we find its velocity. Formula for Displacement is (final displacement)-(initial displacement). Since we have three Displacements, the Displacement should be -25-(-5)-20 = -40m.

[@kennethjayunabia3858]

The pig's initial position has to be at x=0 and final position at x=-10. That's why delta x = -10.

[@arashdelkhoonjoband1584]

but doesn't the pig starts from 0? I assume X initial would be zero because it starts from rest and then runs 20 m rightward.

[@lalaonlineacademy6433]

Awesome

[@YourLocalPigeon]

Who's here at 2024, still not understanding an adverb?

[@AcsahMengistu]

I have a question when we approximate -1m/30s into 0.03 where did we drop negative sign

[@BOLYANA]

Thanks

[@dvc5743]

why is it 0.033 not -0.033?

[@ChickenMcChicken]

yes you are right he made a mistake i think gosh darnit khan

[@MãrkañMãrkañ-u1q]

How🤔

[@dareeldmt9310]

​​@@MãrkañMãrkañ-u1qwatch the video at about 3:16 he left out the negative sign on the final answer but included it in previous solution.

[@ludwigvanbeethoven8164]

You’re a god

[@NtlakuBaloyi]

Question...we are given the average speed and you use it as the average velocity,why?

[@brittanygreen1203]

the

[@subtodicerat8305]

the what?

[@thanaa6401]

I dunno bro i think 1/6 m/s is too little to say it runs

[@subtodicerat8305]

it has to stop so it can eat the apple and the 2 nuts

[@mitchellcoonahan5798]

Hello

[@jeevanshaji2724]

why should the apple be juicy ...............and why a pig

[@PixieChapstick]

ikr

[@jeevanshaji2724]

he is like ---------ok this is our pig =>0

[@mohammedriyaz7772]

This is wrong

[@mohammedriyaz7772]

Look at the value of your average velocity....does it make sense

[@YourLocalPigeon]

@@mohammedriyaz7772 Ok Mr. Big brain, prove it