Question

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.144 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.9 m/s , shatters the glass as it passes through, and leaves the window at 10.5 m/s with no change of direction.

Requied:
a. What is the direction of the impulse that the glass imparts to the baseball?
b. Calculate the magnitude of this impulse (a positive number).

Answer 1

Answer:

a)The direction of the impulse that the glass imparts to the baseball Is opposite the direction of the balls motion

b)  $I=0.6336Ns$

Explanation:

From the Question we are told that:

Mass $m=0.144kg$

Initial Speed $v_1=14.9m/s$

Final speed  $v_2=10.5$

a)The direction of the impulse that the glass imparts to the baseball Is opposite the direction of the balls motion

b)

Generally the equation for impluse magnitude is mathematically given by

 $I=m(v_1-v_2)$

Therefore

 $I=0.144(14.9-10.5)$

 $I=0.6336Ns$