if the displacement of an object is proportional to the square of time, then the object moves with-
uniform velocity, uniform accelaration, increasing accelaration or decreasing accleration?
 

Asked by mumbai.sanjit | 27th Dec, 2015, 06:50: PM

Expert Answer:

From the 2nd equation of motion, begin mathsize 14px style straight s equals ut plus 1 half at squared end style, if the object starts from rest i.e., its initial velocity is zero (i.e., u = 0), then
begin mathsize 14px style straight s equals 0 cross times straight t plus 1 half at squared straight s equals 1 half at squared end style
If a = constant, then 
begin mathsize 14px style straight s proportional to straight t squared end style
Thus, the object moves with uniform acceleration.

Answered by Faiza Lambe | 27th Dec, 2015, 07:13: PM