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related to: Need for Speed

1. ### 3 sentence explain pls?

...and then ultimately looses this extra speed rolling up the next ramp. But.... So really we just need to consider how B can cross the down... than A.  Consider for a moment, B static at the dip down...

3 Answers · Science & Mathematics · 13/01/2021

2. ### Physics: Rotational Variables Problem Set?

... is L/v, so you need pi/(3*w) > L/v => w < pi*v/(3L). For each row in the given table, the maximum value of w (the angular speed ) is pi*v/(3L).  Just...

1 Answers · Science & Mathematics · 12/01/2021

3. ### projectile motion question?

There's a formula for this: over level ground, range x = V²sin(2Θ)/g and so 7 m = V² * sin(40º) / 9.8 m/s² solves to V = 10.33 m ≈ 10 m/s

1 Answers · Science & Mathematics · 09/01/2021

4. ### Physics HW Help?

https://keisan.casio.com/exec/system/1224665242 So 12 hrs

1 Answers · Science & Mathematics · 17/12/2020

5. ### Need Help?

...propagation speed in the medium vr is the speed of the receiver/observer vs is the speed of the source for a fixed source and observer moving away f = (c - vr / c + 0)f₀...

2 Answers · Science & Mathematics · 03/12/2020

...that the stone to hit the water and not includes time for the sound to travel back to the top of the well to be ...distance at top of the well. Lets consider it as 0 Need x = ? x = x₀ + v₀t + ½at²...

1 Answers · Science & Mathematics · 29/11/2020

7. ### Physics Homework Help?

For a river width of 0.75 km and a distance traveled...arctan(Vi/Vc) = 41.4º If you need that relative to your horizontal line, use your...of the ideal (current free) velocity equals the current speed : Θ = arcsin(12.0/13.6) = 62º upstream from...

3 Answers · Science & Mathematics · 30/11/2020

8. ### Physics question: What is the height from which a car of mass m = 1350 kg must be dropped in order to acquire a speed v = 100km/h?

I so wanted to answer this question. However, my answer is "Anonymous" as your post is Anonymous. There is no need for an Anonymous question in this category,

1 Answers · Science & Mathematics · 22/11/2020

9. ### Some Physics HW :)?

First up... don't forget to choose a  BEST  answer... !! speed , that is tangential velocity,  v,   is  :          v =  ( 2πr ) * ( # rev )  /  t All the objects have the  same  value for   2πr,  just convert   r  to meters instead of cm before  any calculations...

1 Answers · Science & Mathematics · 09/11/2020

10. ### I need help with physics. I don't understand what I'm suppose to do?

...39;d say velocity, because it is squared. But one could argue for radius, because it's in the denominator (and so small radii lead to big ...

1 Answers · Science & Mathematics · 10/11/2020