Baseball is known as americas past time
Yes all those are correct, but I don't know what the question was
There will still be 8g due to the law of conservation of mass. An object undergoing a physical change (change in state, color change..) will have the same mass before and after.
Answer: 
Explanation:
From Newton's law of motion, Force is equal to rate of change of momentum.
The initial velocity of the ball, u = 4.1 m/s
mass of the ball, m = 0.07 kg
During contact, velocity = 0
Time of contact, t = 72 ms = 72 × 10⁻³ s

Thus, net force applied to the ball during this collision is 