Answer:
v₀ = 26.17 m/s
Explanation:
If
R = Xmax = 50 yards = (50 yards)*(0.9144 m / 1 yard) = 45.72 m
t = 5 s (Time of Flight)
we can apply the equation:
R = V₀x*t ⇒ V₀x = R / t = 45.72 m / 5 s ⇒ V₀x = 9.144 m/s
then we use the equation of Time of Flight:
t = 2*V₀y / g ⇒ V₀y = g*t / 2 = (9.81 m/s²)*(5 s) / 2 ⇒ V₀y = 24.525 m/s
Finally we apply
v₀ = √(V₀x² + V₀y²) ⇒ v₀ = √(9.144² + 24.525²) m/s
⇒ v₀ = 26.17 m/s
They’re used as lubricants because it eases up on the friction.
You should solve this like you would any algebraic expression. Divide both sides by acceleration (a) and you will isolate the mass (m) to one side. Now divide the force (f) by acceleration (a).
F/a=m
This would be 3 kilometers, because there are 1000 meters in 1 kilometer. I hope this helps! Have a great day!
Answer:
Yes
Explanation:
The shape will affect the friction and the way the skateboard moves.