Question

pls answer this question fast

Answer 1

Answer:

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Explanation:

Let distance covered by A be S1

Let distance covered by B be S2

B will catch A when S1=S2

S=ut+

2

1

×a×t

2

40t+(

2

1

×0×t

2

)=0t+1/2×2×t

2

40t=t

2

40=t

Answer 2

Answer:

answer is option c

note that for some time v is 0 therefore x must be 0.

but for some time v is decreasing but displacement will not decreases.

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