Question

answer the question​

Answer 1

Answer:

See answer in above attachment

Answer 2

Explanation:

1)a= -2m/s²,t=10s,u=?

We know that v=u+at

0=u-2×10

u=20m/s

2)a=4m/s²,t=10s,u=0,s=?

We know that s=ut+1/2at²

so putting the above values we get s=200m

3)F=200N,m=800Kg,a=?

We know that F=ma

so a=F/m

a=0.25m/s²

4)m=100g=100×1/10³Kg, F=0.2N,t=5s,s=?, u=0

We know that a=F/m=2m/s²

We also know that s=ut+1/2at²

so putting the above value we get s=25m