How much time is required for an elevator to lift a 2000 kg load up 28 m from the ground level, if the motor can produce 13 kW of power?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

According to your data, was your hypothesis correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. list at least two real world examples that apply the findings of this experiment. (hint: an example of this type was given in the introduction to this project.)