By conservation of momentum,
Pinitial = Pfinal
m1v1 + m2v2 = (m1 + m2)*vf
m1 = mass of skateboard = 1.13 kg
m2 = mass of cat = 0.93 kg
v1 = initial velocity of skateboard = 4.28 m/s
v2 = initial velocity of cat = 0 m/s
vf = final velocity of skateboard-cat combo
So plug in the values and solve for vf,
1.13(4.28) + 0.93(0) = (1.13 + 0.93)vf
vf = 2.35 m/s
Answer:
Angle of twist;Φ = (to•L²)/Gπc⁴
Explanation:
I have attached the explanation.
However, I used D for radius of shaft against c used in the question. So, if we replace the D with c, we'll have;
Φ = (to•L²)/Gπc⁴
Answer: saw it on quiz let
Explanation:
The correct choice is ~ A
Bikes don't require gasoline for their functioning, so it causes less air pollution.