AP EAMCET202022 Sep 2020Evening ShiftPhysicsWork, Power and EnergyActual
An electric motor exerts a force of 50 ~N on a a cable and pulls it through 60 ~m in 1 ~min . The power supplied by the motor is
Options
- A50 ~W
- B3000 ~W
- C1 ~W
- D100 ~W
Correct answer
A. 50 ~W
Step-by-step solution
Force exerted by electric motor, F=50 ~N Displacement, s=60 ~m Time, t=1 ~min =60 ~s Power supplied by the motor, array rlr P & = W t = F s t & [ W=F s] & = 50 60 60 =50 ~W & array