The Total solution for NCERT class 6-12
A body is initiallyat rest. It undergoes a one-dimensional motion with constant acceleration. Thepower delivered to it at time t is proportional to(i) t1/2 (ii)t (iii) t3/2 (iv) t2
(ii)From v = u + atv = 0 + at = atAs power, p = F x v.’. p = (ma) x at = ma2tSince m and a are constants, therefore, p α t.