The force needed to pull the tape throug...

The force needed to pull the tape through an audio cassette player is 0.98 N. In operation the tape travels at a constant speed of 2.5 `cm//s` The motor consumes a power of 1.8 W. what percentage of the power input to the motor is required to pull the tape at its operating speed ?

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The correct Answer is:

[`1.36%`]

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