Answer:
a) average speed = 11m/s
b) time = 0.056secs
c) Magnitude force = 825000N
d) ratio = 40.05
e) Assumptions ; g = 9.81m/s square
Explanation:
Given the following parameters;
- Vi (initial velocity) = 22m/s
a) average speed = final velocity + initial velocity / 2
Vavg = 22 + 0 / 2 = 11m/s
b) how long does the collision last, i.e the time taken,
from average speed = distance / time
time = distance / average speed
t = 0.62m/11m/s
t = 0.056secs
c) Magnitude of average force
from Favg = ma
but a = v/t
Favg = mv/t = 2100 x 22 / 0.056
Average force = 825000N
d) ratio of force to the gravitational force(mg) = (Fwall)avg/mg
= 825000/2100x9.81
= 40.05