If a car moves 10m distance in 2 seconds and halts for next 2 seconds. Afterwards, the car moved 20m in next 2 seconds. What is the average speed of car throughout the entire journey?
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sorry for the late reply this question is a little ambiguous
average speed is total distance /total time
we know the time part we need distance for which it halts
it travels 10m in 2 second doesn't say it accelerate so let's say it's moving with uniform velocity of 5m/s because speed is distance by time
then it halts or decelerate let's say it stops because it doesn't say anything in question
so let's find it's deceleration using 1 at equation
v=u+at
v =0
u=5
t=2
so a =-5/2
then using 3rd equation we get t
v2=u2+2as
we get a here as 5
now we have all the distance
average speed =10+5+20/6
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