Me Robbins is taking his baby for a walk in a stroller. The amount of force that mr. Robbins must use to make the stroller move MOST likely depends on the strollers-

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f