A plane starting at rest at one end of a runway undergoes a uniform acceleration of 4.8 m/s 2
for 15 s before take-off. What is its speed of takeoff?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?