Feroz and his sister Sania go to school on their bicycles. Both of them start at the same time from their home but take different times to reach the school although they follow the same route. Table 8.5 shows the distance travelled by them in different times
Table 8.5: Distance covered by Feroz and Sania at different times on their bicycles
Time Distance Distance travelled travelled by Feroz by Sania (km) (km)
8:00 am 0 0
8:05 am 1.0 0.8
8:10 am 1.9 1.6
8:15 am 2.8 2.3
8:20 am 3.6 3.0
8:25 am – 3.6 Q • Plot the distance-time graph for their motions on the same scale and interpret.
Answers
Given : Feroz and his sister Sania go to school on their bicycles. Both of them start at the same time from their home but take different times to reach the school although they follow the same route.
To Find : Plot the distance-time graph for their motions on the same scale
Solution:
Time Feroz Sania
8:00 AM 0 0
8:05 AM 1 0.8
8:10 AM 1.9 1.6
8:15 AM 2.8 2.3
8:20 AM 3.6 3
8:25 AM 3.6 3.6
distance-time graph for their motions on the same scale plotted
Slope give speed
Speed of Firoz is better than Sania
Firoz reaches before Sania and wait for Sania
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Explanation:
F= Feroz
S=sania
F S
8:00 am 0 0
8:05am 1.0 0.8
8:10am 1.9 1.6
8:15am 2.8 2.3
8:20am 3.6 3.0
8:25am - 3.6