Asked by Ronnie
The school bus slows from 60km/h to 40km/h when entering the scholl zone.
a. Calculate the conversation of these speeds from km/h to m/s.
b. Given that this change of speed occured over 8 seconds, calculate the average deceleration of the bus.
My work...
a.60/3.6=17m/s
40/3.6=11.1m/s
b. i cant do b.
a. Calculate the conversation of these speeds from km/h to m/s.
b. Given that this change of speed occured over 8 seconds, calculate the average deceleration of the bus.
My work...
a.60/3.6=17m/s
40/3.6=11.1m/s
b. i cant do b.
Answers
Answered by
Henry
a. Vo = 60000m/3600s. = 16.7 m/s.
Vf = 40000m./3600s. = 11.1 m/s.
b. a = (Vf-Vo)/t = (11.1-16.7)/8 = -0.699 m/s^2.
Vf = 40000m./3600s. = 11.1 m/s.
b. a = (Vf-Vo)/t = (11.1-16.7)/8 = -0.699 m/s^2.
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