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Units And Measurement

Question
CBSEENPH11017540

If torque on a body changes the momentum of body from 3 units to 9 units in 5 seconds, then what is the magnitude of torque on the body?

Solution

Initial torque = 3 units 
Final torque = 5 units
Time taken to change the momentum of the body = 5 seconds
Therefore, the magnitude of torque on the body is, straight tau space equals fraction numerator 9 minus 3 over denominator 5 end fraction equals 1.2 space unit