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

تمرين 45

Driving a jet-powered car, Royal Air Force pilot Andy Green broke the sound barrier on land for the first time and achieved a record land speed of more than 763 mi/h in Black Rock Desert, Nevada, on October 15, 1997 (Fig.). (a) What is this speed expressed in m/s (b) How long would it take the jet-powered car to travel the length of a 300-ft football field at this speed ( Hint: v = d/t. )

FIGURE Record run see Exercise.