Question

tom drives his remote control car from rest, accelerates uniformly in a straight line at 2m/s2 for 10s in a distance of 100m.The car then proceeds at this velocity for 600m and finally comes to rest uniformly in the next 20s.Calculate (a) the maximum velocity of the car during this journey.(b) the total distance travelled by the car.(c)the total time taken by the car to travel the whole trip.(d)the average velocity of the car during the journey.

Answer 1

Let solve it using the table:

So, answer:

$$v _ {m a x} = 2 0 m / s$$ $$S _ {t o t a l} = 9 0 0 m$$ $$t _ {t o t a l} = 6 0 s$$ $$v _ {a v} = \frac {S _ {t o t a l}}{t _ {t o t a l}} = \frac {9 0 0}{6 0} = 1 5 m / s$$