The velocity graph of a car accelerating from rest to a speed of 60 km/h over a
ID: 3373333 • Letter: T
Question
The velocity graph of a car accelerating from rest to a speed of 60 km/h over a period of 30 seconds is shown. Estimate the distance traveled during this period. (Use M6 to get the most precise estimate. Round your answer to two decimal places.)
1 km
Explanation / Answer
change the measurement unit of velocity 60km/hr into m/sec
multiply 60*1000/(60*60)=16.66m/sec
apply 2nd equation of motion
s=ut+1/2att
a=change in v/change in t
therefore a=16.66-0/30-0
a=16.66/30
put value of a=16.66/30msqaure/sec
t=30sec
u=0 as it is initial velocity
u will get s=249.9m
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