A 130-kg crate, starting from rest, is pulled across a floorwith a constant horizontal force of 410 N. For the first 20 m thefloor is frictionless, and for the next 20 m the coefficient offriction is 0.27.

What is the final speed of the crate?

answers

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

Related questions

A crate of mass 10.0 kg is pulled up a rough incline with
an initial speed of 1.50 m/s. The pulling force is 100 N
parallel to the incline, which makes an angle of 20.0Â° with
the horizontal. The coefficient of kinetic friction is 0.400,
and the crate is pulled 5.00 m. (a) How much work is
done by the gravitational force on the crate? (b) Determine
the increase in internal energy of the crate-incline
system owing to friction. (c) How much work is done by
the 100-N force on the crate? (d) What is the change in
kinetic energy of the crate? (e) What is the speed of the
crate after being pulled 5.00 m?

If the coefficient of kinetic friction between a 12 crate and thefloor is 0.31, what horizontal force is required to move the crateat a steady speed across the floor?
What horizontal force is required if is zero?

A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, which makes an angle of 20.0° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled at 5.00 m. (a) How much work is done by the gravitational force on the crate? (b) How much work is done by the 100-N force on the crate?