In the winter sport of bobsledding, athletes push their sled along a horizontal ice surface and then hop on the sled as it start
s to careen down the steeply sloped track. In one event, the sled reaches a top speed of 9.2 m/s before starting down the initial part of the track, which is sloped downward at an angle of 4.0 degrees.What is the sled's speed after it has traveled the first 100 m? Express your answer with the appropriate units.
2 answers:
You might be interested in
Objects in vertical motion are an illustration of non-uniform motion. At the peak of the circle, centripetal force is balanced by the object's weight. Therefore, the minimum speed required at this top point is given by v = 
= 
= 5.23 m/s. As the sphere descends from the top to the bottom of the circle, according to the law of conservation of energy, potential energy can be expressed as 
where u is the velocity at the lowest point. Consequently, the modified equation is
=
=
= 11.71 m/s. The collision of the dart with the bullet is an inelastic one. According to the conservation of momentum: v =
=
=
= 58.55 m/s. Thus, the dart's minimum initial speed for the combined system to complete a circular loop post-collision is 58.55 m/s.