A body of weight 1 N has a potential energy of 1 J relative to the ground.Find the height?
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Q.19: A body of weight 1 N has a potential energy of 1 J relative to the ground.Find the height?
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- A 70.00 kg jumper leaves the ground with a vertical velocity of 5 m/s. b.) What is his max potential energy during this jump?A 4 kg object is fired straight up with an initial speed of 80 m/s. Ignore air resistance and set the initial height of the object at zero. Use g = 10m/s/s. Find the total energy. Find the height of the object when its speed is 40 m/s. Find the speed of the object when its height is 200 m.A 150g book is initially at rest on a table that has no friction. A force of 3.2 N is applied to the book which moves over a distance of 1.2 m. The table is 1.4m high. a) What is the work done by the force on the book? b) What is the final speed of the book? c) What is the final kinetic energy of the book? d) What is the gravitational potential energy of the book relative to the table?
- What is the minimum energy needed to change the speed of a 1680 kg sports utility vehicle from 18.8 m/s to 44.2 m/s?(a) y = 5.00 m E = F = |m/s² a V = m/s I| || ||||7. A force parallel to the x-axis acts on a particle moving along the x-axis. The force produces a potential energy U(x) given by U(x) = ax² + Bx4 where a = -0.70 J/m² 1.50 J/m². What is the force, magnitude and direction, when the particle is at X = 1.5 m? At what positions would the force be zero? and B =
- 18. A cart is loaded with à brick and pulled at constant speed along an inclined plane to the height of a seat- top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seat-top? 19. A 75-kg refrigerator is located on the 70th floor of a skyscraper (300 meters above the ground) What is the potential energy of the refrigerator? 220. TTHE potential energy of a 40-kg cannon ball is 14000 J. How high was the cannon ball to have this mouth potential energy? Ce %23 8. 9. W d f g h b n m CQuestion 284. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and turns with a total height of 102.75 m. If the 99.375 kg man has a speed of 27 m/s at the bottom, what was the total work done on him by friction and air resistance slowing him down? (In other words, what was the energy lost to friction and air resistance?) He starts from rest at the top. 6.3843e4 Previous submissions: -63.84 63.84 63843 J J incorrect
- A 100 kg object is fired straight up with an initial speed of 200 m/s. Ignore air resistance and set the initial height of the object at zero. Use g = 10m/s/s. Find the total energy of the object. Find the height of the object when its speed is 100 m/s. Find the speed of the object when its height is 100 m. Find the maximum height of the object.A 40 N object has 80 joules of potential energy. The object is at a height of 0.5 meters. True or falseA 0.500-kg particle has a speed of 1.30 m/s at point A and kinetic energy of 7.00 J at point B. What is its kinetic energy at A? What is its speed at B? What is the net work done on the particle by external forces as it moves from A to B?