A bobsleigh racing team push starts a sleigh, starting from rest and accelerating it over a...
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A bobsleigh racing team push starts a sleigh, starting from rest and accelerating it over a time of 6.00 s to a speed of 11.0 m s−1 before jumping into the sleigh and beginning their descent of the bobsleigh run. The finish line is 112 m below the point where the team jump into the sleigh. The combined mass of the sleigh and team is 600 kg.
(i) Calculate the combined kinetic energy of the sleigh and team just as the team jump into the sleigh. [2 marks](ii) Calculate the change in gravitational potential energy of the team and sleigh over the course of their descent of the run. [2 marks](iii) Calculate the speed at which the sleigh would cross the finish line if you could neglect energy losses due to dissipative forces such as air resistance, friction, and braking. −1 [5 marks](iv) In a race, the speed of the sleigh at the finish line was 36.0 m s . How much work did a combination of dissipative forces such as air resistance, friction, and braking do on the sleigh and team during the race? [5 marks](v) After crossing the finish line in the race, the sleigh entered a flat 340 m long runoff area, where the sleigh was brought to a halt by the application of brakes. Calculate the minimum average force that needed to be applied via the brakes to stop the sleigh within the runoff area.
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A bobsleigh racing team push starts a sleigh, starting from rest
and accelerating it over a...
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please label and circle the answers
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Please help with both problems.
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please label and circle the answers
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