A car starting from rest travels 30 m with a constant acceleration of 2m/s^2. De

Question

A car starting from rest travels 30 m with a constant acceleration of 2m/s^2. Determine how long it takes to scroll. 10 s 15 s 5.5 s 2s If an object falling freely were somehow equipped with an odometer to measure the distance it travels, then the amount of distance it travels each succeeding second would be (Doubled). (Greater than the second before). (Constant). (Less and less each second). If a rocket initially at rest accelerates at a rate of 50 m/s2 for one minute, its speed will be 3500 m/s. 3000 m/s. 500 m/s. 50 m/s. A train increases its speed from 20 ft/s to 80 ft/s in two minutes. Determine the acceleration. 0.25 ft/s^2 40 ft/s^2 30 ft/s^2 0.5 ft/s^2

Explanation / Answer

1. 5.5 seconds , t = root( 2xs /a)

2. b. greater that the second before, velocity continously increases with time, the distance travelled per second also increases.

3. 3000 m/s, v = at

4. 0.5 ft/s2 , V-u/t   

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