Question

The ratio of distances travelled by a uniformly accelerated body form rest in the first second, second second and third second is:

• A. 1 : 3 : 5
• B. An integral multiple of odd number ratio less than 7
• C. An integral multiple of odd natural numbers.
• D. 1 : 4 : 9

Answer 1

The correct option is A 1 : 3 : 5

$s_1=\frac{a}{2}$
$s_2=\frac{4a}{2}=2a;s_3=\frac{9a}{2}$
$s_1:(s_2-s_1):(s_3-s_2)=\frac{a}{2}:\frac{3a}{2}:\frac{5a}{2}$
$=1:3:5$