question number 40 please
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when t=2
then x=3(2)-4(2)²+(2)³
=6-16+8
=-2
t=3
x=3(3)-4(3)²+3³
=9-36+37
=0
t=4
x=3(4)-4(4)²+(4)³
=12-64+64
=12
so average velocity =total displacement/total time
=12-(-2)/4-2
=14/2
=7m/s
is it the question of ntse class ????
then x=3(2)-4(2)²+(2)³
=6-16+8
=-2
t=3
x=3(3)-4(3)²+3³
=9-36+37
=0
t=4
x=3(4)-4(4)²+(4)³
=12-64+64
=12
so average velocity =total displacement/total time
=12-(-2)/4-2
=14/2
=7m/s
is it the question of ntse class ????
rashmirbt10:
yes
of which class??
10
oh
thanks
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