Why is it a good idea to extend your bare hand forward when you are getting ready to catch a fast-moving baseball?
a. so you can catch the ball with a stiff arm, increasing the time to slow the ball thus deceasing the force.
b. so you can pull your hand back, increasing the time to slow the ball thus increasing the force.
c. so you can catch the ball with a stiff arm increasing the time to slow the ball thus increasing the force.
d. so you can pull your hand back, increasing the time to slow the ball thus deceasing the force.

d

Explanation:

It is good to extend your bare hand forward when you are getting ready to catch a fast-moving ball so you can pull your hand back, increasing the time to slow the ball thus decreasing the force.

While catching impulse is being transferred to hands imparting great force, lowering hand would increase the time so that average force decreases and chances to drop the ball also decreases.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

technology is the application of the knowledge gained by science.