In movies, we often see epic fight scenes, yet they are rarely accurate. Here is the scenario: Superman and a villain are fighting in the air. While hovering above earth, Superman grabs a villain by the neck, and throws him forward. Superman remains stationary while the villain travels in the direction he was thrown. Using conservation of linear momentum, explain what is wrong with this scen
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In movies, we often see epic fight scenes, yet they are rarely accurate. Here is the scenario: Superman and a villain are fighting in the air. While hovering above earth, Superman grabs a villain by the neck, and throws him forward. Superman remains stationary while the villain travels in the direction he was thrown. Using conservation of linear momentum, explain what is wrong with this scen
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- Dan is gliding on his skateboard at 2.56 m/sm/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.22 m/sm/s (as measured by an observer on the ground). Dan's mass is 42.1 kgkg and the skateboard's mass is 5.99 kgkg . If the jump requires 0.122 ss to complete, what average force did Dan exert on the skateboard?During a fireworks display, a 0.280-kg bottle rocket approaches the top of its trajectory and explodes into two pieces as in the figure. The first piece (Piece 1) has mass 0.180 kg and the second piece (Piece 2) has mass 0.100 kg. Immediately after the explosion, the first piece is observed traveling to the left at a speed of4.30 m/sand the second piece is observed traveling at an angleθ = 39.0°above the horizon at a speed of 17.0 m/s. Determine the components of the bottle rocket's velocity immediately before the explosion. Vxi = m/s Vyi = m/sA small block of mass m, - 0.755 kg is released from rest at the top of a curved wedge of mass m, = 3.50 kg, which sits on a frictionless horizontal surface as in figure (a). When the block leaves the wedge, its velocity is measured to be 4.00 m/s to the right, as in figure (b). m2 4.00 m/s (a) What is the velocity of the wedge after the block reaches the horizontal surface? (Enter the magnitude of the velocity.) m/s (b) What is the height h of the wedge?