Time and distance sums
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s=120 km
t=2.5 h
Thus,
v=120/2.5
=48 km/h
Now,
t=0.5 h
s=120 km
Hence,
v=120/0.5
=240 km/h
::Speed of the car should be increased by (240-48)km/h=192 km/h.
t=2.5 h
Thus,
v=120/2.5
=48 km/h
Now,
t=0.5 h
s=120 km
Hence,
v=120/0.5
=240 km/h
::Speed of the car should be increased by (240-48)km/h=192 km/h.
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