Answer:
a) the answer is t=4 seconds
b) acceleration is zero
c) displacement= 142 m
Step-by-step explanation:
Given the position of the particle

a) the time required when velocity


now we solve for time


b) acceleration when

acceleration is the time derivative of velocity i.e

c) the net displacement of the particle during the interval t = 1 s to t = 4 s is
