Lonnie pitches a baseball of mass 0.20 kg. the ball arrives at home plate with a speed of 40 m/s and is batted straight back to lonnie with a return speed of 60 m/s. if the bat is in contact with the ball for 0.050 s what is the impulse experienced by the ball? a. 360 n.s b. 20 n.s c. 400 n.s d. 9.0 n.s

B) 20N.s is the correct answer

Explanation:

The formula for the impulse is given as:

Impulse = change in momentum

Impulse = mass × change in speed

Impulse = m × ΔV

Given:

initial speed  = 40m/s

Final speed = -60 m/s (Since the the ball will now move in the opposite direction after hitting the bat, the speed is negative)

mass = 0.20 kg

Thus, we have

Impulse = 0.20 × (40m/s - (-60)m/s)

Impulse = 0.20 × 100 = 20 kg-m/s or 20 N.s