# A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 is 𝑆1 and that covered in the first 20 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 is 𝑆2, then

Question : A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 is 𝑆1 and that covered in the first 20 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 is 𝑆2, then

(A) $S_{2}=2S_{1}$

(B) $S_{2}=3S_{1}$

(C) $S_{2}=4S_{1}$

(D) $S_{2}=S_{1}$

Answer : option (C)

Solution :

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