The position of an object moving along x-axis is given by x = a + bt2 where a = 8.5 m, b =2.5 m s–2 and t is measured in seconds. What is its velocity at t = 0 s and t = 2.0 s. Whatis the average velocity between t = 2.0 s and t = 4.0 s ?

A particle moving along a line has a displacement according to the function x(t)=t2−2t+4,𝑥(𝑡)=𝑡2−2𝑡+4, where x is measured in meters and t is measured in seconds. Find the average velocity over the time period t=[0,2].

A particle's (x, t) coordinates at two instants are A (x=-14m, t=3s) and B (x=6m, t=1s). What is the particle's average velocity during this time?

A particle moves according to the equation; x = 10t2, where x is in meters and t is in seconds. Find the velocity for the time interval from 2.0 s to 2.1 s. (a) 0.1 m/s (b) 42 m/s (c) 44.1 m/s (d) 40 m/s (e) 2.0 m/s 11

When S is measured in meters and t in seconds, find the velocity at time t =2 of the motion S = t2 – 3t2A.-4B.27C.3D.-3

particle moves along a straight line with an acceleration described by equation a=-8s^-2 where a is in m/sec^2 and s in meter. When t= 1 sec, s= 4 m and v=2 m/sec. Determine the acceleration when t = 2 seconds