College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A 70-kg secret agent skies down a circular hill (radius 15 m) and grabs a 20 kg bag, then flies off a 10-m high cliff.
The initial mechanical energy of the agent at the top of the hill is 10,500 J relative to the location of the bag. If 2000 J of energy are lost to resistance forces
- Determine the velocity of the agent before he picks up the bag.
- What is the agent’s apparent weight right before he picks up the bag?
- This looks like a really good test question that could have several more parts. Make up your own part and solve it.
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- It takes 203 kJ of work to accelerate a car from 20.9 m/s to 29.2 m/s. What is the car's mass?arrow_forwardObject A is accelerated by exerting a 14-N force on it over a distance of 8.4 m. Object B is accelerated by exerting a 26-N force on it over a distance of 2.3 m. After the accelerations, how much more kinetic energy (in J) does object A have than object B?arrow_forwardA student throws an object downward. The initial kinetic energy of the object is 360 J. When the object reaches the ground, the kinetic energy of the object is 3 times the initial kinetic energy of the object. What was the initial potential energy of the object?arrow_forward
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