Kinematics Question 338

Question: A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance s1 in the first 10 seconds and distance s2 in the next 10 seconds, then

Options:

A) s2=s1

B) s2=2s1

C) s2=3s1

D) s2=4s1

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Answer:

Correct Answer: C

Solution:

Let a be the constant acceleration of the particle. Then

s=ut+12at2 or

s1=0+12× a ×(10)2=50 a

and s2=[0+12a(20)2]50a=150a

s2=3s1



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