Which statement about the total velocity of a projectile launched on a flat surface at an angle less than 90° is true?
Choices
-The total velocity is zero at the maximum height attained
-The total velocity is equal at launch and at landing
-The total velocity is greatest at launch
-The total velocity is greatest at landing

Question

Which statement about the total velocity of a projectile launched on a flat surface at an angle less than 90° is true?
Choices
-The total velocity is zero at the maximum height attained
-The total velocity is equal at launch and at landing
-The total velocity is greatest at launch
-The total velocity is greatest at landing

anonymous · Answer

so the equation is : square root(vx^2 + vy^2) = v total

anonymous · Answer

Oh okay.. I just don't know how I'm going to plug that in, when the problem only gives me the angle degree o.o

anonymous · Answer

it's just to understand the question better

anonymous · Answer

Oh okay

anonymous · Answer

when something lands, it doesn't really have velocity..

anonymous · Answer

i think the first one is true

anonymous · Answer

i'm not sure though, i should check

anonymous · Answer

That does sound true :/ Hmm.

anonymous · Answer

About your statement when something lands.

theeric · Answer

I got this. First, are you neglecting air resistance? These problems usually do.

theeric · Answer

Do you see the scenario?|dw:1375052121120:dw|