Aparticle has an acceleration of +6.24 m/s2 for 0.300 s. at the end of this time the particle's velocity is +9.81 m/s. what was the particle's initial velocity?

Explanation:

This is uniformly accelerated motion, that is to say a motion with constant acceleration, we can use the kinematic equations, especifically the which one that relate the change in speed to acceleration and time:

So, Rewriting for initial speed:

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it