A remote controlled toy car starts from rest and begins to accelerate in a strai

Question

A remote controlled toy car starts from rest and begins to accelerate in a straight line. The figure below represents "snapshots" of the car's position at equal 0.5 s time intervals. (Assume the positive direction is to the right. Indicate the direction with the sign of your answer.)

(a) What is the car's average velocity in the interval between t = 0.5 s to t = 1.0 s?
m/s

(b) Using data from t = 0.5 s to t = 1.5 s, what is the car's acceleration at t = 1.0 s?
m/s2

(c) Is the car's speed increasing or decreasing with time?

increasingdecreasing    constantnot enough information

Explanation / Answer

a) average speed = disp/time = 0.3/0.5 = 0.6m/s

b)acceleration = (1 -0.6)/1 = 0.4m/s2

c) increasing

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