just number 1

1. A box of mass m is pulled upward by a force T. Draw a force diagram. What is the acceleration of the box in terms of m, T, and g? If the mass is 1 kg and the tension is 1 1 N, what is the numerical value of the acceleration? If the box starts from rest, how far has the box moved in 0.5 s? 2. A student drags a desk with mass 0.5 kg across the floor. The student pulls the desk with a force at 25 above the horizontal. The coefficient of friction between the desk and the floor is 0.35. What is the pulling force required for the desk to have an acceleration of 3 m/s2? (start with a force diagram) W = mg f = MFN T = To+ Not + = at