Two people use a ramp to move a heavy box on to a truck. The box weighs 750 N the mechanical advantage of the ramp is 4. How muc
1 answer:
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Answer:
V=15.3 m/s
Explanation:
To solve this problem, we have to use the energy conservation theorem:
the elastic potencial energy is given by:
The work is defined as:
this work is negative because is opposite to the movement.
The gravitational potencial energy at 2.5 m aboves is given by:
the gravitational potential energy at the ground and the kinetic energy at the begining are 0.
Answer:
sphere, disk, hoop
Explanation:
See attached file
