The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the right along a frictionless flat surface, initially at a height of zero (initial gravitational potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of 2.000 m, pushing the sled with a force of 400.0N over that distance. The rocket is then turned off. The sled then goes up an inclined surface with a rough surface. The coefficient of kinetic friction on the incline is µk. At the top of the incline, the sled reaches a height h = 1.500 m above the ground where the surface becomes flat and frictionless again. The sled (including the rocket and driver) has a total mass of 87.00 kg.

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The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the
right along a frictionless flat surface, initially at a height of zero (initial gravitational
potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of
2.000 m, pushing the sled with a force of 400.0 N over that distance. The rocket is
then turned off. The sled then goes up an inclined surface with a rough surface. The
coefficient of kinetic friction on the incline is uk. At the top of the incline, the sled
reaches a height h = 1.500 m above the ground where the surface becomes flat and
frictionless again. The sled (including the rocket and driver) has a total mass of 87.00
kg.
(Notes: assume that g = 9.810 m/s² , and that the mass of fuel used by the rocket is
negligible. Do not use scientific notation).
After &,
rocket
rocket
Before propulsion
propulsion
starts
ends
rough inclined surface
rocket
frictionless
engaged
coefficient of kinetic friction = H
surface
h = 1.500 m
15.000)
frictionless
surface
Ax = 2.000 m
Transcribed Image Text:The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the right along a frictionless flat surface, initially at a height of zero (initial gravitational potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of 2.000 m, pushing the sled with a force of 400.0 N over that distance. The rocket is then turned off. The sled then goes up an inclined surface with a rough surface. The coefficient of kinetic friction on the incline is uk. At the top of the incline, the sled reaches a height h = 1.500 m above the ground where the surface becomes flat and frictionless again. The sled (including the rocket and driver) has a total mass of 87.00 kg. (Notes: assume that g = 9.810 m/s² , and that the mass of fuel used by the rocket is negligible. Do not use scientific notation). After &, rocket rocket Before propulsion propulsion starts ends rough inclined surface rocket frictionless engaged coefficient of kinetic friction = H surface h = 1.500 m 15.000) frictionless surface Ax = 2.000 m
Question 13
For these different forms of work done on the sled, indicate which is positive (1) or
negative (2).
Work done by rocket-
powered propulsion on
sled
1. Work is positive
Work done by friction on
sled
2. Work is negative
Work done by gravity on
sled
Transcribed Image Text:Question 13 For these different forms of work done on the sled, indicate which is positive (1) or negative (2). Work done by rocket- powered propulsion on sled 1. Work is positive Work done by friction on sled 2. Work is negative Work done by gravity on sled
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