Aman of mass 80.0 kg stands on a platform of mass 40.0 kg. he pulls on a rope that is fastened to the platform and runs over a pulley on the ceiling. with what force does he have to pull in order to give himself and the platform and upward acceleration of 1.0 m/s²?

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

70 give a real life example showing how sensory neurons work with the motor neurons

In which of the following is positive work done by a person on a suitcase