Question

pls help me with this ​

Answer 1

initial velocity (u) =4m/a

acceleration (a) =-0.02m/s2

final velocity (v)=0 m/a (comes to rest)

we know,

a=(v-u)/t where t is time

or,-2/100=0-4/t

-2t=-400

therefore,t=-400/-2=200 second

hope it helps

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