Answer:
The acceleration is 2 m/s2.
Explanation:
We calculate the acceleration (a), with the data of mass (m) and force (F), through the formula:
F = m x a ---> a= F/m
a = 40 N/20 kg <em> 1N= 1 kg x m/s2</em>
a= 40 kgx m/s2/ 20 kg
<em>a= 2 m/s2</em>
You multiply force times friction
displ = velocity x time
25 x 3.2 = 75+5 km north.
Answer:
momentum=mass×velocity
momentum =400kg×20m/s=8000kg.m/s
Dispersion im pretty sure
