# physics

What horizontal force is needed to push a hospital bed of mass 120 kg at a constant speed up a smooth sloping plane inclined at an angle of 37 degrees above the ground?

1. 👍 0
2. 👎 0
3. 👁 357
1. m*g = 120kg * 9.8N/kg = 1176 N. = Wt. of
the bed.

Fp = 1176*sin37 = 707.73 N. = Force
parallel to the incline.

Fn = 1176*cos37 = 939.20 N. = Normal =
Force perpendicular to the incline.

!@#\$%^&-Fp = m*a
!@#\$%^&-707.73 = m*0 = 0
!@#\$%^& = 707.73 N. = Force applied parallel
to the incline.

Fx = !@#\$%^&*cos A = 707.73*cos37 = 565 N.
= Hor. force applied.

1. 👍 0
2. 👎 0
posted by Henry

## Similar Questions

1. ### physics

A force of 30 N pulls a mass left at 30 degrees to the horizontal and one of 100 N pulls right at 120 degrees. If the mass of the mass which is 50 kg, find the acceletation if coeffcient of sliding is .01? What would be the

asked by randy on November 20, 2006
2. ### Physics

Hospital patient. A 90.0 kg patient is suspended in a raised hospital bed as shown in the figure. The wire is attached to a brace on the patient's neck and pulls parallel to the bed, and the coefficients of kinetic and static

asked by Emma on October 8, 2016
3. ### physics

A 71.0 kg patient is suspended in a raised hospital bed as shown in the figure. The wire is attached to a brace on the patient's neck and pulls parallel to the bed, and the coefficients of kinetic and static friction between the

asked by andrew on February 9, 2016
4. ### physics multiple choice

A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as

asked by andrea on February 2, 2011
5. ### physics multiple choice

A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as

asked by mely on February 2, 2011
6. ### physics

suppose the you push with a 40-N horizontal force on a 4-kg mass resting on a horizontal surface against a horizontal friction force of 24N. show that the acceleration is 4 m/s2

asked by Anonymous on January 31, 2012
7. ### Science-Physics

You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of .50 m/s? (b) How much work do you do if you

asked by Erica on January 9, 2011
8. ### science

a man pushes a lawnmower of mass 50kg at a constant velocity over a horizontal lawn.he exerts a push of 200n on the handle a t angle of 60 to the horizontal..Dertemime the vertical componet of this force and determine the

asked by fulufhelo on March 6, 2013
9. ### physics

you push a physics book 1.50m along a horizontal tabletop with a horizontal push of 2.40 N while the opposing force of friction is 0.600 N. How much work does each of the follwing forces do on the book? A) you 2.40N push. B) the

asked by Sarah on June 18, 2009
10. ### Physics!!!!

3. You push your physics book 1.50 m along a horizontal table- top with a horizontal push of 2.40 N while the opposing force of friction is 0.600 N. How much work does each of the following forces do on the book: (a) your 2.40-N

asked by Anonymous on October 24, 2015

More Similar Questions