A woman at an airport is towing her 13.0-kg suitcase at constant speed by puling on a strap at an angle e above the horizontal. She puls on the strap with a 28.0-N force, and the friction force on the suitcase is 20.0 N. (a) Draw a free-body diagram of the suitcase. Cheose ne fle selected This answer has not been graded yet (b) What angle does the strap make with the horizontal? (c) What is the magnitude of the normal force that the ground exerts on the suitcase Need Help? Wwwh

A 5.0-kg box is on a horizontal surface. The coefficients of static and kinetic friction between the box and the surface are 0.40 and 0.20, respectively. A 15-N push is applied to the box horizontally, what is the friction on the box?

An 11 kg block is being pushed forward on a flat surface with a force of magnitude 45 N. The coefficient of static friction on the block is 0.15 and the coefficient of kinetic friction on the block is 0.12 (only one of these needs to be used). (a) Draw a free body diagram of the block. (b) What is the net force acting on the block? (c) What is the acceleration of the block? FN Ea

A child of mass 30 kg sits on a sled of mass 10kg which is pulled along the ice at a constant speed by a rope inclined at 30 °to the horizontal. The coefficient of friction for the ice and sled, HK, is 0.05. Calculate the pulling force in the rope. Pulling force F, pull 30° Gravity FG Normal i Friction f

A 5.1 kg box is slid across the floor at constant speed by a force of 25 N (40o above horizontal) as shown in the figure below. (a) How large a friction force impedes the motion of the box? (b) How large is the normal force? (c) Find the coefficient of kinetic friction.

A horizontal force, Fm, is applied to a book that is on a rough horizontal tabletop. As a result the book is accelerating to the right. If necessary, use Fs for the force of static friction and Fk as the force of kinetic friction. Draw a free body diagram for the book

The upper leg muscle (quadriceps) exerts a force of 1180 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in Figure 5.43. Find the magnitude and direction of the force exerted by the kneecap on the upper leg bone (the femur).  N  ° (counter-clockwise from an axis directed to the left)

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A 50 kg box is pushed with a force of 200 N along a horizontal surface. If the coefficient of friction between the box and the surface is 0.3, calculate the acceleration of the box. (Note: The gravitational acceleration can be assumed to be 9.8 m/s² unless stated otherwise.)

Consider the 65.0 kg Ice skater being pushed by two others shown In the figure. Frot F2 Free-body diagram F, F, F, (a) Find the direction (in degrees) and magnitude (in N) of F,et, the total force exerted on her by the others, glven that the magnitudes F, and F, are 25.2 N and 15.4 N, respectively. direction o (counterclockwise from the direction of F, is positive) magnitude (b) What is her initial acceleration (in m/s?) if she is initlally stationary and wearing steel-bladed skates that point in the direction of F? (c) What is her acceleration (in m/s2) assuming she is already moving in the direction of Fot? Remember that friction is always in the opposite direction of motion or attempted motion between surfaces in contact. m/s? (in the direction of Frot)