Author Question: A particle moving along the x axis has a position given by x = (24t 2.0t3) m, where t is measured ... (Read 140 times)

Kthamas · **on:** Jul 28, 2018

A particle moving along the x axis has a position given by x = (24t 2.0t3) m, where t is measured in s. What is the magnitude of the acceleration of the particle at the instant when its velocity is zero?
a. 24 m/s2
b. zero
c. 12 m/s2
d. 48 m/s2
e. 36 m/s2

Question 2

The position of a particle as it moves along the x axis is given by x = 15e-2t m, where t is in s. What is the acceleration of the particle at t = 1.0 s?
a. 22 m/s
b. 60 m/s
c. 8.1 m/s
d. 15 m/s
e. 35 m/s