Kinematics Question 374

Question: A body starts from rest and it’s uniformly accelerated for 30 s. The distance travelled in the first 10 s it’s x1 , next 10 s it’s x2 , and the last 10 s it’s x3 . Then x1:x2:x3 it’s the same as:

Options:

A) 1:2:4

B) 1:2:5

C) 1:3:5

D) 1:3:9

Show Answer

Answer:

Correct Answer: C

Solution:

x1=12a(10)2=50a

x2=(10a)(10)+12a(10)2=150a

x3=(20a)(10)+12a(10)2=250a
x1:x2:x3::1:3:5 s



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