plz answer c part only urgent
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distance travelled in nth second is given by the formula
Sn=u+1/2a(2n-1)
u=0
a=20
n=5
Therefore
Sn=0+1/2*20(10-1)
=90 m
alternate method for this question would be
(-distance travelled in n th second) =distance travelled in n-1 seconds - distance travelled in n seconds
hope this helps
shivang77:
but distance travelled in n seconds - distance travelled in n seconds is 0
sorry...i have edited it
do marks as brainliest
hehe you either forgot modulus sign
or either changed signs in last part
sorry 4 disturbance again sorry bro
n n koi ni
done
some really smart edit on your part bro
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