# A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn?

Circular Motion, Gravitation, and Work and Energy

1. A 5600 kg mass car is taking a      turn at 72 m/s. If the frictional force here is 44,000N, what is the      radius of curvature of the turn?
2. Up where the ISS (International      Space Station) orbits at 387 km, even though they are weightless there      still is acceleration due to gravity. Calculate its value and what it is      in respect to 8g at the Earth’s surface.
3. Going back to the previous      question, how long does it take the ISS to orbit? (You must calculate this      and not just look it up!)
4. If a person on a 35.0 m      diameter Ferris wheel feels 30% heavier at the bottom of the wheel, how      fast is it going around?
5. A large box with mass 45 kg is      being pushed up a ramp at a 32o incline at a constant velocity      by a man pushing parallel to the incline for 7.80 m. If the coefficient of      kinetic friction is 0.25, what is:
1. The force the man is pushing       on the box.
2. The work done by the man on       the box.
3. The force of friction.
4. The work done by the friction       force.
6. A spring with negligible mass      is suspended next to a ruler such that the end of the spring at      equilibrium is at the 0 cm mark on the ruler. If a 3.0 kg mass is      suspended from the spring and it stretches so that the end of the spring      is at the 17 cm mark, what is the spring constant k?
7. A softball having a mass of      0.45 kg is pitched horizontally at spring with spring constant 78 N/m. If      the ball hits the spring and compresses it 56 cm, how fast was the      softball moving initially?
8. A roller coaster is a height of      120 m and has a series of dips. What is he velocity at the bottom      (assuming this is 120 m below the top) and what is the velocity at a bump      that is 75 m above the ground?
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### Circular Motion, Gravitation, and Work and Energy

Please solve the following problems and show all work.

1. A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn?
2. Up …

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### Week 3 Homwork Questions

Please provide step by step process used to reach solutions.

1. A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn?
2. Up …

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### Homework help

1. A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn?
2. Up where the ISS (International Space Station) orbits at 387 km, …

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### Problem Set 3

1. A 5600 kg mass car is taking a turn at 72 m/s. If the frictional force here is 44,000N, what is the radius of curvature of the turn?
2. Up where the ISS (International Space Station) …