College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 102

Newton's second law of motion (Section 4.3) is expressed by the equation F = ma , where F represents force, m is mass, and a is acceleration. (a) The ST unit of force is, appropriately, called the newton (N). What are the units of the newton in terms of base quantities (b) An equation for force associated with uniform circular motion (Section 7.3) is F = mv 2 / r , where v is speed and r is the radius of the circular path. Does this equation give the same emits for the newton