Question

A body moving with a constant acceleration in a straight line travels 3 m and 8 m in 1 s and 2 s respectively. Find the initial velocity and the acceleration of the body​

Answer 1

Answer:

$Using, s=ut+21at2</p><p></p><p> s1=u+21a</p><p></p><p>or, 3=u+2a </p><p></p><p>  ∴a=6−2u</p><p></p><p>s2=2u+21a×4</p><p></p><p>8=2u+2a</p><p></p><p>Solving the equations</p><p></p><p>8=2u+2(6−2u)</p><p></p><p>8=2u+12−4u </p><p></p><p>2u=4 </p><p></p><p>u=2m/s</p><p></p><p>∴a=6−2u=6−4=2m/s2 </p><p></p><p>$

Explanation:

hope it helps you ☺️✌️