Question

pls solve these all three questions

Answer 1

1) s=ut+0.5at²
=>s=0*30+0.5*3.2*30
=>s=48m
2)v²=u²-2gh
=>0²=u²-2*9.8*2.5
=>u²=49
=>u=7m/s
initial velocity=7m/s
3)a=(v-u)/t
=>a=(40*1000/3600)/(10*60)
=>a=0.185185...... m/s²