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Marlene hasn't been to Disney Land since the pandemic, but when she goes the line is so long she decides to go to California Adventure instead. There is no line for California Screamin so Marlene walks straight to the front and gets into the kart. To make the ride more "fun" Marlene slips out of her seat belts. The kart is raised to a height of 121 feet (37 m) before dropping and going into a vertical loop that has a radius of 15 m. If Marlene has a mass of 125 pounds (56.7 kg), what is the normal force that Marlene feels? Does she wish she wore her seat belts? (Marlene brought a parachute, just in case, and is safe either way.)

Marlene hasn't been to Disney Land since the pandemic, but when she goes the line is so long she decides to go to California Adventure instead. There is no line for California Screamin so Marlene walks straight to the front and gets into the kart. To make the ride more "fun" Marlene slips out of her seat belts. The kart is raised to a height of 121 feet (37 m) before dropping and going into a vertical loop that has a radius of 15 m. If Marlene has a mass of 125 pounds (56.7 kg), what is the normal force that Marlene feels? Does she wish she wore her seat belts? (Marlene brought a parachute, just in case, and is safe either way.)

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**Physics of Roller Coaster Rides** Marlene hasn't been to Disneyland since the pandemic, but when she goes, the line is so long she decides to visit California Adventure instead. There is no line for California Screamin' so Marlene walks straight to the front and gets into the cart. To make the ride more "fun," Marlene slips out of her seat belts. The cart is raised to a height of 121 feet (37 meters) before dropping and going into a vertical loop with a radius of 15 meters. If Marlene has a mass of 125 pounds (56.7 kg), what is the normal force that Marlene feels? Does she wish she wore her seat belt? (Marlene brought a parachute, just in case, and is safe either way.) **Options for Calculation:** - 1,270 N, No - 254 N, No - -37 N, Yes! - -938 N, Yes! **Explanation:** Consider the forces acting on Marlene at the top of the loop. The normal force will vary depending on the speed and radius of the loop. If the normal force is negative, it means that Marlene would feel weightless or experience a lifting sensation, emphasizing the importance of being securely fastened in her seat.
Transcribed Image Text:**Physics of Roller Coaster Rides** Marlene hasn't been to Disneyland since the pandemic, but when she goes, the line is so long she decides to visit California Adventure instead. There is no line for California Screamin' so Marlene walks straight to the front and gets into the cart. To make the ride more "fun," Marlene slips out of her seat belts. The cart is raised to a height of 121 feet (37 meters) before dropping and going into a vertical loop with a radius of 15 meters. If Marlene has a mass of 125 pounds (56.7 kg), what is the normal force that Marlene feels? Does she wish she wore her seat belt? (Marlene brought a parachute, just in case, and is safe either way.) **Options for Calculation:** - 1,270 N, No - 254 N, No - -37 N, Yes! - -938 N, Yes! **Explanation:** Consider the forces acting on Marlene at the top of the loop. The normal force will vary depending on the speed and radius of the loop. If the normal force is negative, it means that Marlene would feel weightless or experience a lifting sensation, emphasizing the importance of being securely fastened in her seat.
For Enya, the only thing worse than studying for her O-chem midterm is having to do so with Rubbab rollerblading in front of her house while trying to sing Blackpink. (Without knowing Korean!) Rubbab loves Blackpink and loves skating on Enya’s street because the street is adjacent to (and 15 m above) a beautiful river. First, Enya takes and aces her O-chem midterm. Once Enya is finished she walks outside and waves at Rubbab. When Rubbab stops, Enya throws her 10 kg O-chem book at her with a speed of 20 m/s. Although Rubbab easily catches the book, because she is on roller blades the momentum pushes her off the street and into the river 15 m below. If Rubbab weighs 111 pounds (50.3 kg), how far from the base of the street does she "land" in the river? - ○ 1.7 m - ○ 13.5 m - ○ 8.2 m - ○ 5.8 m
Transcribed Image Text:For Enya, the only thing worse than studying for her O-chem midterm is having to do so with Rubbab rollerblading in front of her house while trying to sing Blackpink. (Without knowing Korean!) Rubbab loves Blackpink and loves skating on Enya’s street because the street is adjacent to (and 15 m above) a beautiful river. First, Enya takes and aces her O-chem midterm. Once Enya is finished she walks outside and waves at Rubbab. When Rubbab stops, Enya throws her 10 kg O-chem book at her with a speed of 20 m/s. Although Rubbab easily catches the book, because she is on roller blades the momentum pushes her off the street and into the river 15 m below. If Rubbab weighs 111 pounds (50.3 kg), how far from the base of the street does she "land" in the river? - ○ 1.7 m - ○ 13.5 m - ○ 8.2 m - ○ 5.8 m
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