Question

the velocity graph of a car accelerating from rest to a speed of 120 km/h over a period of 30 seconds. estimate the distance traveled during this period

Answer 1

Given a speed and time graph the distance will be the area under the graph

Answer 2

how do i that with left riemann i got a big number that didnt look right

Answer 3

Can you show what you tried

Answer 4

\[v=dx/dt \rightarrow dx=v.dt \rightarrow x=\int\limits_{0}^{30}v.dt\]
and you shoude convert km/h into m/s
1km/h ==> (1/3.6)m/s