Respuesta :

Answer:

1. 160N

2. 60m/s²

3. 6 kg

Explanation:

1. f=ma

f=8×20

f=160N

2.a=f/m (By rearranging above equation)

a=3/0.05

a=60m/s²

3.m=f/a

m=54/9

m=6 kg