Determing the height h on the wall to which the firefighter can project water from the hose, if the angle 0 is as specified and the speed of the wateř at the nozzlé is ve Given: m vc = 16 hy = 1 m d = 10 m e = 40 deg B- 8 = 9.81 Solution: Guesses h = 1 m d = vccos(0 ): + vesin(@ )r + h, Given h =

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Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.