a 0.149-kilogram baseball, initially moving at 15 meters per second, is brought to rest in 0.040 seconds by a baseball glove on a catchers hand. the magnitude of the average force exerted on the ball by glove is

The net force in this case will be given by:
 F = m * ((delta V) / (delta t))
 where,
 delta V: speed differential.
 delta t: time differential.
 m: mass.
 Substituting the values:
 F = (0.149) * ((15) / (0.040))
 F = 55,875 N
 Answer:
 the magnitude of the average force exerted on the ball by glove is
 F = 55,875 N