A staple gun has a mass of about 0.910 kg. A staple is usually too small to measure with classroom scales, but if you put 210 staples on the balance, it reads 6.80 grams. A staple gun is at rest and fires off a staple to the right, which is considered to be the positive direction. Let’s say the staple travels at 1.23 m/s after being fired.
1a. Find the recoil velocity on the staple gun after firing the staple.
1b. Why is the recoil velocity so small?