physics
posted by Anonymous .
An 85.7 N box of clothes is pulled 26.2 m up
a 31.7
◦
ramp by a force of 112 N that points
along the ramp.
The acceleration of gravity is 9.81 m/s
2
.
If the coeﬃcient of kinetic friction between
the box and ramp is 0.24, calculate the change
in the box’s kinetic energy.
Answer in units of J

ΔKE=ΔPE +W(fr)= m•g•s•sinα+μ•m•g•s•cosα=
=m•g•s(sinα+μ•cosα)
Respond to this Question
Similar Questions

physics
A box is pushed a distance d along a ramp at a constant speed by a horizontal force, Fa. The mass of the box is m. The ramp is inclined at an angle of above the horizontal and the coecient of kinetic friction between the box and … 
Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy. 
physics
A box slides down a 33.3 ◦ ramp with an acceleration of 1.07 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Determine the coeﬃcient of kinetic friction 
physics
A box slides down a 33.3 ◦ ramp with an acceleration of 1.07 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Determine the coeﬃcient of kinetic friction between the box and the ramp. 
physics
An 66.0 N box of clothes is pulled 5.5 m up a 30.0° ramp by a force of 116 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy. 
Physics
An 85.7N box of clothes is pulled 26.2m up a 31.7 degree ramp by a force of 112N that points along the ramp. The acceleration of gravity is 9.81 m/s^2 How high does it rise above the point of release? 
Physics
An 82.9 N box of clothes is pulled 28.2 m up a 20.7◦ ramp by a force of 117 N that points along the ramp. The acceleration of gravity is 9.81 m/s^2. If the coefficient of kinetic friction between the box and ramp is 0.29, calculate … 
Physics
An 85.7N box of clothes is pulled 26.2m up a 31.7 degree ramp by a force of 112N that points along the ramp. The acceleration of gravity is 9.81 m/s^2 How high does it rise above the point of release? 
physics
An 56.0 N box of clothes is pulled 5.2 m up a 30.0° ramp by a force of 104 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy. … 
physics
An 56.0 N box of clothes is pulled 5.2 m up a 30.0° ramp by a force of 104 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.