Answer:
The acceleration of the plane is, a = 3.88 m/s²
Explanation:
Given data,
The mass of the airplane, m = 1492.3 kg
The force produced by each engine, f = 1447.5 N
Therefore, the total force produced by four engines, F = 5790 N
The force acting on an object is equal to the product of its mass and acceleration,
F = ma
Therefore, the acceleration is
a = F/m
Substituting the given values in the above equation,
a = 5790 N / 1492.3 kg
a = 3.88 m/s²
Hence, the acceleration of the plane is, a = 3.88 m/s²
Answer:304 not 261
Explanation:
That is, in prototype form anyway – the custom Chiron Longtail hit 304 mph (490 km/h) last year, but the production version dubbed the Chiron Super Sport 300+ will be electronically limited to only 273 mph (440 km/h).
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Bicyclist initial kinetic energy is Ek=(1/2)*m*v² where m is his mass and v is his speed and that is equal to:
Ek=(1/2)*60*2²=120 J.
When we add the increased work output, we get the total kinetic energy:
Ek(total)=Ek+W= 120 J + 1800 J= 1920 J
So Ek(total)=1920 J = (1/2)*m*V² where V is the speed after the bicyclist increased his work output. So lets solve for V:
(1/2)*60*V²=1920
30*V²=1920, we divide by 30,
V²=64, and take the square root of both sides,
V=8 m/s.
So the speed of the bicyclist after the increased work output is V=8 m/s.
Animals have a food chain. (sorry for my bad English)