Question

Giúp em gấp với ạ

 

 

Answer 1

a,\(\Rightarrow a=\dfrac{v-vo}{t}=\dfrac{15-0}{2.60}=0,125m/s^2\)

b,\(\Rightarrow S=\dfrac{v^2-vo^2}{2a}=900m\)

c,\(\Rightarrow v=vo+at=>20=0+0,125t=>t=160s\)

d,\(\Rightarrow S=\dfrac{20^2}{2.0,125}=1600m\)

Answer 2

Hết giờ chưa :))