NUMBER 1:
A T-ball with a mass of 0.3 kg travels in the
air at 45 m/s until it is stopped in the glove of
a shortstop over a period of 0.05 s.
What impulse was imparted to the T-ball?
NUMBER 2:
What is the average net force exerted by
the ball on the glove?
Answer in units of kgm/s
A T-ball with a mass of 0.3 kg travels in the
air at 45 m/s until it is stopped in the glove of
a shortstop over a period of 0.05 s.
What impulse was imparted to the T-ball?
NUMBER 2:
What is the average net force exerted by
the ball on the glove?
Answer in units of kgm/s
-
Momentum of ball as it strikes the glove = mV = (0.3)(45)
Size of the Change in momentum of ball = |0 - (0.3)(45)| = (0.3)(45)
Size of Impulse = Size of Change in momentum = (0.3)(45) = ________ N-s ANS-1
Favg(time) = Size of Impulse
Favg(0.05) = (0.3)(45)
Favg = (0.3)(45)/0.05 = __________ N ANS-2
Size of the Change in momentum of ball = |0 - (0.3)(45)| = (0.3)(45)
Size of Impulse = Size of Change in momentum = (0.3)(45) = ________ N-s ANS-1
Favg(time) = Size of Impulse
Favg(0.05) = (0.3)(45)
Favg = (0.3)(45)/0.05 = __________ N ANS-2