You are pushing a sled in which your little sister is seated up a 28° slope (one that makes an angle of 28° with the horizontal). If the mass of the sled and girl is 40 kg, and the coefficient of kinetic friction between the sled and the surface is 0.100, with what magnitude of force do you need to push in order for the sled to move with constant velocity? N Submit Answer

You are pushing a sled in which your little sister is seated up a 28° slope (one that makes an angle of 28° with the horizontal). If the mass of the sled and girl is 40 kg, and the coefficient of kinetic friction between the sled and the surface is 0.100, with what magnitude of force do you need to push in order for the sled to move with constant velocity? N Submit Answer

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 35PE: A nurse pushes a cart by exerting a force on the handle at a downward angle 35.0° below the...

See similar textbooks

Similar questions

If a single constant force acts on an object that moves on a straight line, the objects velocity is a linear function of time. The equation v = vi + at gives its velocity v as a function of time, where a is its constant acceleration. What if velocity is instead a linear function of position? Assume that as a particular object moves through a resistive medium, its speed decreases as described by the equation v = vi kx, where k is a constant coefficient and x is the position of the object. Find the law describing the total force acting on this object.
A nurse pushes a cart by exerting a force on the handle at a downward angle 35.0° below the horizontal. The loaded cart has a mass of 28.0 kg, and the force of friction is 60.0 N. (a) Draw a free-body diagram for the system of interest. (b) What force must the nurse exert to move at a constant velocity?
A certain orthodontist uses a wire brace to align a patients crooked tooth as in Figure P4.88. The tension in the wire is adjusted to have a magnitude of 18.0 N. Find the magnitude of the net force exerted by the wire on the crooked tooth. Figure P4.38
Two masses, m1 and m2, are connected by a string that passes over a pulley. Mass m1 slides without friction on a horizontaltabletop, and mass m2 falls vertically downward. Both masses move with a constant acceleration of magnitude a. (a) Is thetension in the string greater than, less than, or equal to the weight of block 2, m2g? (b) Which of the following is the bestexplanation for your prediction?
An impala is an African antelope capable of a remarkable vertical leap. In one recorded leap, a 45 kg impala went into a deep crouch, pushed straight up for 0.21 s, and reached a height of 2.5 m above the ground. To achieve this vertical leap, with what force did the impala push down on the ground? What is the ratio of this force to the antelope’s weight?
Block A in the figure has a mass of 4.5 kg, and block B has a mass of 12.0 kg. The coefficient of kinetic friction between block B and the horizontal surface is 0.35.a) What is the mass of block C if B moves to the right with an acceleration of 2.5 m / s^2?b) What tension is there in each string in such a situation?
You are trying to move a heavy 300kg object on a rough horizontal surface by applying a force of 220 N, but the object does not move. What is the magnitude of the frictional force acting on this object?
A 28 kg suitcase is being pulled with constant speed by a handle that is at an angle of 26 ∘ above the horizontal. If the normal force exerted on the suitcase is 180 N, what is the force F applied to the handle?
Kevin works as a janitor, and he is pushing a fully-loaded recycling bin that weighs 557 N across the floor. He applies a force of 410 N at an angle of 15° below the horizontal. The coefficient of kinetic friction between the recycling bin and the floor is 0.46. How long does it take him to move the bin 6.5 meters, assuming the bin starts from rest? 1.98 s 3.77 s 1.02 s 2.85 s
Given a 15 foot tall wall that is loaded as indicted. (F = 100 pounds) Determine the point where the force F will intersect the base measured from the wall. (please include a free body diagram if applicable) choices: a)13.33 ft b)20 ft c)3/4 ft d)15 ft e)10 ft f)7.5 ft g)12.5 ft h)11.25 ft
a block is sliding down a ramp with an external force (in addition to friction) applied up the ramp so that the block has a constant velocity and the acceleration is 0. if the ramp is inclined at 35 degrees up from the horizontal, and the coefficient of friction between the block and the ramp is 0.1, what is the external force that is applied? the mass of the block is 0.4kg.
Margie, who weighs 649 N, is standing on a bathroom scale that weighs 55.0 N. a. With what magnitude force does the scale push up on Margie? answer in N b. attached picture 1 c. With what magnitude force does the floor push up on the scale? answer in N d. attached picture 2