if a car attains a speed of 36 kmph from rest in 12 minutes what is distance covered?
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the answer is 1/72 m/s² or 0.13 m/s²
dhandapanivrd:
iam just 7th std please step need
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ANS : 7.2Km
Speed=36 km/hr
Time =12 min = 12/60 hr
we know that Speed=Distance/Time
so, Distance = Speed x Time
D=36 x 12 /60
=7.2 km
Speed=36 km/hr
Time =12 min = 12/60 hr
we know that Speed=Distance/Time
so, Distance = Speed x Time
D=36 x 12 /60
=7.2 km
but book ans is 3.6 km
what chapter it is....
Yeah...my answer is wrong... because the speed is not constant throughout the process...Rate of change of Distance with respect to time..that Speed can be found by simple Integration
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