Question

relation between displacement x=2-5t=6t²,the initial velocity will be -3m/sec., 12m/sec,2m/sec ,-5m/sec

Answer 1

Answer:

-1.876

Explanation:

-1.876

Answer 2

Explanation:

v= dv /dt

= d ( 2- 5t -6t ^2 ) /dt

= d(2)/dt + d(-5t)/dt + (-6t^2) / dt

= 0 -5-6 ( 2) t

= -5 m/sec. At t = 0 because there is initial velocity.