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- Find the force??Question Amess of 1.0 kg is dropped trom a hoight of 10.0 m. What is its kinotic enorgy whon it is 2.0 m from the ground? O 392J O 784J 49.0J O 196JUse 3 decimal places. A body weighing 2,225N is being dragged along a rough horizontal plane by a pull of 445N directed at 18o from the horizontal. If fk = 1/12, 1. find the velocity required from rest in the first 5.500m? 2. find the velocity required from rest in the first 3.650m?
- The cart shown below moves across the table top as the biock talls. What is the acceleration of the cart? Negiect friction and assume the follawing data: m- L Ng, m,32 kg, I0.5 kg m, and r= 15 cm. (Enter the magnitude in mys?) m 341 x ms?Fnet a = =1600 N bir 600 N 100 kg a = Fgrav =1000 N a = 6.0 m/s? (up)A dragster reaches 350 km/h from rest in 6.2s. If the car is 800 kg and generates a driving force of 14000N, find the force of friction acting on the car.
- Check Your Understanding Find the angle between forces F1and F3in Example 2.16.The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the acceleration of the protons (m=1.671027kg)that move around the accelerator at 5of the speed of light? (The speed of light is v=3.00108m/s .) (b) What is the force on the protons?A geosynchronous satellite orbits Earth at a distance of 42,250.O km and has a period of 1 day. What is the centripetal acceleration of the satellite?