The fastest helicopter, the Westland Lynx, has a mass of 3.343 x 103 kg and a maximum momentum of 3.723 x 105 kg.m/s. What is its top speed?
Maximum momentum = mass x (maximum speed)
To find the top speed of the Westland Lynx helicopter, we can use the concept of momentum. The momentum (P) of an object is given by the equation:
P = m * v
Where:
P = momentum
m = mass of the object
v = velocity (speed) of the object
In this case, we are given the mass of the helicopter (m = 3.343 x 10^3 kg) and the maximum momentum (P = 3.723 x 10^5 kg.m/s). We need to find the top speed (v).
So, rearranging the equation, we have:
v = P / m
Substituting the given values, we get:
v = (3.723 x 10^5 kg.m/s) / (3.343 x 10^3 kg)
Calculating this division, we find:
v ≈ 111.4 m/s
Therefore, the top speed of the Westland Lynx helicopter is approximately 111.4 meters per second.