An electric motor creates a tension of 4500 N in hoisting cable and reels it at the rate of 2 m/s. What is the power of electric motor

Q: An electric motor creates a tension of 4500 N in hoisting cable and reels it at the rate of 2 m/s. What is the power of electric motor ?
(A) 15 KW
(B) 9 KW
(C) 225 W
(D) 9000 H.P

Solution :  P = T.v (numerically)
= 4500 × 2 = 9000 W = 9 kw

Author: Rajesh Jha

QuantumStudy.com for CBSE|IIT-JEE|NEET

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