Latihan Kendiri 8.7 Soalan 1

Suatu zarah bergerak di sepanjang satu garis lurus dan melalui satu titik tetap O dengan halaju awal 3 ms–1. Pecutannya, a ms–2, t saat selepas melalui O diberi oleh a = 6 – 3t. Cari sesaran seketika zarah itu, dalam m, apabila A particle moves along a straight line and passes a fixed point O with an initial velocity of 3 ms–1. Its acceleration, a ms–2, t seconds after passing O is given by a = 6 – 3t. Find the instantaneous displacement of the particle, in m, when (a) t = 5,

(b) halajunya seragam (b) its velocity is uniform