Please calculate the braking energy for a vehicle (m=2000kg) decelerating from 80km/h to 40km/h on a level surface? Take the Mass Moment of Inertia for one wheel to be I=4kg*m² and the wheel diameter to be d=64cm.
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Hello mate,
Lot of irrelevant data is given here. Don't be fooled by that.
● Answer-
Braking force = 22220 N
● Explaination-
# Given-
m = 2000 kg
u = 80 km/h = 22.22 m/s
v = 40 km/h = 11.11 m/s
# Solution-
Here, car is stopped suddenly so time taken is 1 s.
Acceleration is calculated by-
a = (v-u)/t
a = (22.22-11.11)/1
a = 11.11 m/s^2
Braking force is-
F = ma
F = 2000 × 11.11
F = 22220 N
Therefore, braking force is 22220 N.
Hope this helps...
Lot of irrelevant data is given here. Don't be fooled by that.
● Answer-
Braking force = 22220 N
● Explaination-
# Given-
m = 2000 kg
u = 80 km/h = 22.22 m/s
v = 40 km/h = 11.11 m/s
# Solution-
Here, car is stopped suddenly so time taken is 1 s.
Acceleration is calculated by-
a = (v-u)/t
a = (22.22-11.11)/1
a = 11.11 m/s^2
Braking force is-
F = ma
F = 2000 × 11.11
F = 22220 N
Therefore, braking force is 22220 N.
Hope this helps...
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