Question

a blue shark accelerates at a rate of 16 m/s^2 for a time of 0.8s. During this time it travels a distance of 11.52m. Calculate its initial spped.

Answer 1

formula=s=ut+1/2at^2

11.52=u*0.8+1/2*16*0.8^2

11.52=u*0.8+5.12

u*0.8=6.40

u=6.4/0.8

u=8m/s

initial speed=8m/s