Answer:
t = 0.0105 s
Step-by-step explanation:
given,
mass of the baseball = 435 g = 0.435 Kg
initial speed of ball, u = 36 m/s
final speed of ball, v = 49 m/s
contact force , F = 3500 N
we know,
Impulse is equal to change in momentum
I = m v - m u
I = 0.435 (49-(-36))
I = 0.435 x 85
I = 36.975 kg.m/s
we also know that
I = F x t
36.975 = 3500 x t
t = 0.0105 s
time of contact is equal to 0.0105 s