14. olympic gold medalist michael johnson runs one time around the track - 400
meters - in 38 seconds. what is his displacement? 5 . what is his
average velocity? __
(5 pts)

the rearrangement of particles in a physical change. hope this

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft