Question

CE2711-FM.pdf O file://C/Users/Sachin/Desktop/Past%20papers/Eng/CE2 711-FM.pdf - (25 marks) Question 02 Explain momentum and write down the basic formula to find the momentum in mechanics. a) (05 marks) e bave to consider when we apply the momentum b) What the two most important factors that principle. (05 marks) c) A water jet from a nozzle is deflected through an angle 60° from its original dircction by a curved vane which it enters tangentially (see Figure 2.1) without shock with a mean velocity of 28 m/s and leaves with a mean velocity of 21 m/s. If the discharge calculate the magnitude and the direction of the resultant force on the vane if the vane moves from the nozzle is 0.8 kg/s, A ssume the density of water is 1000 kg/m. (15 marks) e-60° 1 m/s Figure 2.1 Water t to a curved plate (25 marks) Question 03 10:39 PM 012015 4 Ps

Answer 1

a) the quantity of motion of a moving body is called momentum. Momentum is equal to product of mass to its velocity

b) If a body is not applied with external force then it's momentum will remain unchanged. But if any external force is acted on it, momentum will change according to newton's second law.

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