1. Watch this video

Video Link (1) : https://youtu.be/2FwhjUuzUDg

Question : When you are lucky enough to catch a fly ball with your bare hand while watching a baseball game, your hand will be best off if you catch the ball with your hand extended toward the ball, then while contact is being made, pulling your hand back, gradually stopping the ball. In terms of impulse-momentum, explain why this is so.

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Video Link (2) : https://youtu.be/1-s8NZ8xKW0

Question : Suppose a freight-train car rolls along a track at 10 m/s and collides with an identical freight car at rest. The two cars couple together and move as one along the track. How fast do the coupled-cars move?

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Video Link (3) : https://youtu.be/MK0B5hEU7OI

Question : How fast would the small fish have to swim before lunch to halt the large fish in its tracks?

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Video Link (4) : https://youtu.be/E65ZiWE-Ajc

Question : Suppose the situation is the same, but Freddy's mass is 2 kg. What is the speed of the skateboard when Freddy lands on it and takes a ride?

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Video Link (5): https://youtu.be/wq6zLJDlG0o

Question : If our block of ice weighed 500 N instead of 400 N, how much force would the little guy on the ramp have to exert to slide it up the ramp at constant speed?

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Video Link (6) : https://youtu.be/SVl31g-xhTc

Question : Consider the identical blocks atop three ramps of the same height. All blocks have the same PE. When they topple from their elevated positions, they reach the bottom without encountering friction. Question: How does the speed of the blocks compare when reaching ground level?