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Question

The angular acceleration and the moment of inertia of the flywheel is  0.6 red/sand 2500kg .m2 respectively. What is the kinetic energy (in kN-m) of the flywheel after 10 seconds from the start?

फ्लाईव्हील का कोणीय त्वरण और जड़त्व आघूर्ण क्रमशः 0.6 रेड/सेकेंड2 और 2500 किग्रा.मी2 है। शुरुआत से 10 सेकंड बाद फ्लाईव्हील की गतिज ऊर्जा (kN-m में) क्या है?

A.

45

B.

450

C.

4.5

D.

4500

Answer ( Option A)

45

Solution

Given :

  1. Angular acceleration  = (a) = 0.6 red/s2
  2. Moment of inertia (I) = 2500kg-m2
  3. Angular velocity after 10 second,


Kinetic energy is given by,


Hence, the correct option is (A).

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