Question

Window Help Phy M1 may 18.pdf page 4 of 12) Sun 742 PM C) 2N D) 3N E) (3/2) N 8. The position of an object as a function of time is given by x(t) = (1/2)ar - vt + d, where a = 4.0 m/s?, v = 2.0 m/s and d = 5.0 m. What is the instantaneous velocity of the object when I = 4.0 s? A) +14.0 m/s B) +10.0 m/s C) +8.0 m/s D) -2.0 m/s E) -9.8 m/s E) 5 3500 Р 0 W stv 31

Answer 1

act) = fat? vt xd Now vt) = d cact)) :VSt) = ({ at vt ta) Vai-at-vto i at t= 40 s U(t) = 4x4-2 =16-2 v=+14.0 mis