.'.'.' i will give medal who will explain me completely '.'.'.
A car starts from rest at set of traffic lights A, shown on the distance time graph. It then gradually increases speed until its travelling at a constant speed, shown from B to C on the graph. It then slows to stop at the next set of lights at E.
a) Calculate the constant speed for the car from B to C.
b) Calculate the average speed for the whole time between the traffic lights.
c) By drawing a tangent, estimate the speed at D.

Question

.'.'.' i will give medal who will explain me completely '.'.'.
A car starts from rest at set of traffic lights A, shown on the distance time graph. It then gradually increases speed until its travelling at a constant speed, shown from B to C on the graph. It then slows to stop at the next set of lights at E.
a) Calculate the constant speed for the car from B to C.
b) Calculate the average speed for the whole time between the traffic lights. 
c) By drawing a tangent, estimate the speed at D.

anonymous · Answer

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anonymous · Answer

a) Constant speed of car = Difference in Distance/Difference of time between the points B and b) To calculate average speed, find the slope between the points C and E.

anonymous · Answer

@Harsha12345 can u solve it so i can undertand  it?