Question

A particle moving with a uniform acceleration travels 24 m and 64 m in the first two consecutive intervals of 4 sec each. Its initial velocity is

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Distance travelled in 4 sec
$24=4u+\frac{1}{2}a\times 16......\left(i\right)$
Distance travelled in total 8 sec
$88=8u+\frac{1}{2}a\times 64......\left(ii\right)$
After solving (i) and (ii), we get u = 1 $\frac{m}{s}.$