Answer:
accleraion normal ski 0.0735 m/s², new ski 0.219 m/s²
Explanation:
This exercise should work with the one-dimensional kinetic equations, specifically with the equation
x = v₀ t + ½ a t²
When the skier is at the exit they are at rest, so their initial speed is zero
(v₀ = 0)
x = ½ a t²
Let's calculate the acceleration for normal skiing
a₁ = 2 x / t²
a₁ = 2 175/69²
a₁ = 0.0735 m/s²
a₁ = 7.35 10⁻² m/s²
Let's calculate the acceleration with the new plastic ski
a₂ = 2 x / t₂²
a₂ = 2 175/40²
a₂ = 0.219 m/s²
a₂= 2.19 10⁻¹ m/s²
C. 16 times
Because depending on this ... (4)^2= 16
And (1)^2 =1
Answer:
Kinetic energy is the energy by virtue of object's motion whereas Thermal energy is the internal energy of an object due to the kinetic energy of its atoms. On Increasing temperature, they both increases
Hope this helps! Please mark me as brainliest! :)
Explanation:
Answer:
Market segmentation helps you send the right message, every time, by efficiently targeting specific groups of consumers.
Explanation: