Author Topic: Help me with physics pls  (Read 972 times)

I don't know how to do this halp

The task is a ball has an inital speed of 0m/s, does constantly accelerate, and reaches 75cm after 2.5s.

What I know:
-Initial speed 0m/s
-Total distance: 75cm
-Mass: 410 grams (I think this is unimportant)
-Time: 2.5s

What I need to know:
-Acceleration

Tell me how to calculate this :c

.. are you kidding me

the question is "how fast does a 410 gram object need to go to travel 75 cm in 2.5 seconds"
it's really simple

.. are you kidding me

the question is "how fast does a 410 gram object need to go to travel 75 cm in 2.5 seconds"
it's really simple
But it's starting at 0m/s and accelerating
How

But it's starting at 0m/s and accelerating
How

unless the question is actually how fast it needs to accelerate (e.g. in cm per second), that's irrelevant

unless the question is actually how fast it needs to accelerate (e.g. in cm per second), that's irrelevant
What I need to know:
-Acceleration
:(

Acceleration is velocity divided by time. Pay attention in class.

I think the question is looking for how fast it needs to move. I don't know if you can calculate acceleration without the final velocity.

Acceleration is velocity divided by time. Pay attention in class.
Are you joking me
Are you actually joking me

I think the question is looking for how fast it needs to move. I don't know if you can calculate acceleration without the final velocity.
You're right

Acceleration is velocity divided by time. Pay attention in class.
Are you joking me
Are you actually joking me

Acceleration is velocity divided by time. Pay attention in class.

velocity; change in position
acceleration; change in velocity

I think the question is looking for how fast it needs to move.

yeah, in that case it's pretty much simple division

I don't know if you
can calculate acceleration without the final velocity.

Well at least you can mathematically confirm the answer.

Are you joking me
Are you actually joking me

She's not wrong.

final velocity - initial velocity / time = acceleration

I don't know if you can calculate acceleration without the final velocity.
no, you can

d = v1Δt + 1/2 aΔt2



What's the d?

If you don't know then you have a terrible teacher or you haven't gotten to the subject yet and the answer is something else entirely