Answer:
19.15 Newton
Explanation:
Force on a body is rate of change of momentum.
Thus force on wall is =[tex]\frac{dP}{dt}[/tex]
ΔP = P(final) - P(initial) [in vector]
Note : take component of velocity normal to wall (assuming wall smooth)
P(final) = m*v*sin(Ф) [in negative x direction] = -0.06*28*sin(35)
P(initial) = m*v*sin(Ф) [in positive x direction] = 0.06*28*sin(35)
Thus ΔP=2(0.06*28*sin(35))
Now ΔT is given =0.1 s
Force on wall = [tex]\frac{ΔP}{Δt}[/tex] =[tex]\frac{2(0.06*28*sin(35))}{0.1}[/tex] =19.15 Newton
