Question: 1. Watch this video Video Link : https://youtu.be/2FwhjUuzUDg Question : When you are lucky enough to catch a fly ball with your bare hand while

1. Watch this video

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

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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 : 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 : 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?

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Question : If the missing road surface were 10 m in front of Nellie, instead of 20+ m, what's the maximum speed she can have to stop safely? In other words,v= what?

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Video Link : https://youtu.be/Qe9zYbtBUGg

Question : When balls are released on Tracks A and B, how will their KEs compare as they reach the ends of the tracks; how will their speeds compare, and which ball travels along the track in the shortest time?

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Video Link : https://youtu.be/5rZ3ZHFGw94

Question : If Ari is replaced with circus dog Bo, who has one-fifth the mass of Bart, and the Bo's trainer is positioned 20 m high for a hoped-for catch, will Bo's propulsion be enough to reach the trainer?

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Video Link : https://youtu.be/4F7XqodHewk

Question : If 10 strands of rope support a load in a complex but ideal pulley system, how much force must Nellie supply to lift a 1000-N load?

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Question : If the same-mass bullet were fired at twice the speed into the block, how much higher would the block swing?

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Video Link : https://youtu.be/8I4ii1xEeG0

Question : When you crawl toward the edge of the turntable, does its rotational rate increase, decrease, or remain unchanged? What physics principle supports your answer?

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