Recent content by PerryKid

I need Vo to find height and range, not Vyo EDIT: I found a formula to help me solve it all! :approve: V_{y}=V_{o}Sin(\theta)-gt V_{y}=0

This looks more like projectile motion. In this case, your equation: 5.3m=-0.5(9.8)t^2+15(sin 42°)Δt is not necessary. It seems to be more useful as Y=Y_{o}+V_{oy}t-\frac{gt^{2}}{2}.

Projectile Motion without Initial Velocity (Only time and angle given) Homework Statement A projectile is launched at an angle of 50° above the horizontal and it hits the ground in 12 seconds. a. Calculate the maximum height of the projectile. b. Find the range of the projectile...

So, I can just use any velocity? Or must I use a velocity that intersects? Considering time is neither given nor required, can I use V_f = V_i+at? V_f=0 to find the maximum. I use the gravities as the slope. However, the lines intersect at the origin, where time and velocity equal...

Homework Statement A tennis ball is thrown upward with and reaches height of 18 m. What maximum height can reach this ball on the where acceleration of free fall is 6 times less than g? In both cases initial velocity is same. [sic] (excuse my physics teacher's grammar, don't shoot the...

I got it in class. :frown: This was the process: (Vf-Vi)/(Tf-Ti)=A Or rather... ΔV/ΔT=A Since A= 0.5 m/s2, A=(0.5 m/s)/1 s Thus, V= 0.5 m/s The ratio is the same and thus (0.5 m)/(1 s)=(60 m)/(x s) 60 m*s = 0.5x m*s 120 s :P Thank you for putting up with me and with...

Vi stands for initial velocity. It has an unknown value.

Homework Statement A car starts to run from rest with acceleration 0.5 m/s2. How long does it take to travel distance 60m? [sic] (I have a Russian teacher for AP Physics) Homework Equations V= (Xf-Xi)/(Tf-Ti) ΔX= Vi*T+(1/2)aT2 The Attempt at a Solution I tried to find velocity, but that...

I wasn't sure if that was a right angle. If so, then the entire problem was a piece of cake. If not, then it's more complicated than I thought.

Homework Statement Solve for \theta Homework Equations Unknown The Attempt at a Solution I know, but I have forgotten my basic geometry.

So will this solve for ∅? sin-1(sin ∅) = sin-1((1.33 sin 25.0°)/1.50) ∅ = sin-1((1.33 sin 25.0°)/1.50)

Homework Statement Solve for ∅ 1.33 sin 25.0° = 1.50 sin ∅ Homework Equations Law of Sines? The Attempt at a Solution I did this: (1.33 sin 25.0°)/1.33 = (1.50 sin ∅)/1.33 sin 25.0° = (1.50 sin ∅)/1.33 but I'm solving for ∅, so I modified a little: (1.33 sin 25.0°)/1.50 = (1.50 sin...