Question

A
body covers 100m in 2 s and 128 m in next 4 s . Find the acceleration and intial velocity​

Answer 1

Answer:

= t₁ + = at ² 81

100 = 2u+

a(4). (1)

Distance in (2+4) sec from starting point is 8₁ +82 = u(t₁ + t₂) + = = a(t₁ + t₂)²

228 = 6u+a(36)....(2)

from eq (1) and (2) we get a = 6 sub a = - 7 in eq - (1)

1 2 100 2u x 6 x 4

2u 112 = u=56 cm

v = u + at = 56 − 6 x 8⇒v=8cm/s