Q3 a) A particle is moving along a straight line such that its acceleration is defined as a = (-3v) m/s, where v is in

meters per second. If v = 28 m/s when s = 0 and 1 = 0.

determine the particle's position, velocity, and acceleration

as functions of time.

b) The acceleration of a particle traveling along a

2

straight line is a 31/2 m/s, where s is in meters. If v=0.

s=2 m when t=0. determine the particle's velocity at s =3 m.