Question

The displacement y (in meters) of a body varies with time (in seconds) according to the
equation
y = – 3
2
t2 + 16t + 2. How long does the body come to rest ?
(1) 8 seconds (2) 10 seconds
(3) 12 seconds (4) 14 second

Answer 1

Answer:

((2)t^1+(1)16t^1-1+0 =0

2t+16=0

2t=-16

t=-16/2=-8

t=|-8|=8. (1)

Answer 2

Answer:

The answer will be option (3) 12 seconds