The position x(t) of a particle as a function of time t is given by the equation x(t) = (3.5 m/s)t - (5.0 m/s²)t². What is the average velocity of the particle between t = 0.30 s and t = 0.40 s? 1.

2.

An auto accelerates forward from 7.0 m/s at a uniform 0.71 m/s². It travels a distance of 1.033 km while accelerating. (a) How fast is the auto moving just as it is traveled the 1.033 km? (b) How many seconds did it take to travel the 1.033 km?

3.

The graph in the figure represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 2.0 s and t = 4.0 s? v (m/s) 4.0 2.0 -2.0+ -4.0+ t(s) 1.0 2.0 3.0 4.0 1.