Answer:
W =23807.68 N
Explanation:
given,
surface area of wing = 19.4 m²
speed over top wing = 67 m/s
speed under wing = 51 m/s
density of air = 1.3 kg/m³
weight of plane
From Bernoulli's principle
where 1 and 2 are two different locations at the same geo potential level
so if we call 1 the lower surface and 2 the upper surface,
we find the pressure differential, P₁ -P₂
then the force acting on the plane is
F=P A
F=1227.2 x 19.4
F =23807.68 N
weight of the plane
W =23807.68 N
Answer:
p = 10 kg-m/s
Explanation:
Given that,
Mass of ball 1, m₁ = 2 kg
Speed of ball 1, u₁ = 3i m/s (due East)
Mass of ball 2, m₂ = 4 kg
Speed of ball 2, u₂ = 2j m/s (due North)
We need to find the magnitude of the momentum of this system just after the collision. As we have seen that two balls are moving perpendicular to each other.
Momentum of ball 1, p₁ = m₁u₁
p₁ = 2× 3 = 6 kg-m/s (due east)
Momentum of ball 2, p₂ = m₂u₂
p₂ = 4× 2 = 8 kg-m/s (due north)
Net momentum is given by :
So, the magnitude of the momentum of this system just after the collision is 10 kg-m/s.