An object starts from rest at Position 1 on a track and slides to Position 3, At Position 2, the total energy of the block is 230 J. At Position 3, the potential energy of the block is 50 J. From Position 2 to 3, 15 J of energy were lost due to friction. From Position 1 to 2, 20 J of energy were lost due to friction. Solve for the total energy at Position 1 and the kinetic energy of the block at Position 3. O A Position 1 Total Energy: 230 J. Position 3 Kinetic Energy: 180 J O B Position 1 Total Energy: 265 J. Postion 3 Kinetic Energy: 215 J O C. Position 1 Total Energy: 245 J. Position 3 Kinetic Energy 160 J O D. Position 1 Total Energy: 250 J; Position 3 Kinetic Energy: 165 J

On a roller coaster ride the total mass of a cart - with two passengers included - is 268 kg. Peak K is at 43.2 m above the ground and peak L is at 26.0 m. At location K the speed of the cart is 17.2 m/s, and at location L it is 12.5 m/s. (The wheel mechanism on roller coaster carts always keeps the carts safely on the rail.) K How much mechanical energy is lost due to friction between the two peaks? Submit Answer Tries 0/10

A 100 kg block is pulled at a constant speed of 5.5 m/s across a horizontal floor by an applied force of 137 N directed 37° above the horizontal. What is the rate at which the force does work on the block? W

(Figure 1) is the force-versus-position graph for a particle moving along the x-axis. Figure Fx (N) 4 2 0 -2 -4 1 2 3 -x (m) ▼ Part A Determine the work done on the particle during the interval 0-1 m. Express your answer with the appropriate units. Wo-1 = Units You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Part B ΠΑ W1-2 = Submit Value Previous Answers Request Answer Determine the work done on the particle during the interval 1-2 m. Express your answer with the appropriate units. μA Value Units ? www Previous Answers Request Answer ? Units input for part B