A435-gram baseball traveling at 36 m/s is hit directly back at the pitcher with a speed of 49 m/s. if the force of contact between the bat and the ball is 3500 newtons, then the ball is in contact with the bat for a time

a. 1.615714286
b. incorrect
c. seconds.
d. 3.

t = 0.0105 s

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

ammonium chloride & tallow

it has to be b, about 97 percent.