2. A crate is pushed horizontally at an angle of 20° across a rough surface as...
Question 5 15 marks You should be able to answer this question after studying Unit 10 A crate, initially at rest, is pushed along a straight line up a rough ramp that makes an angle of 18° with the horizontal. The magnitude of the pushing force is 33 N, in a direction parallel to and up the ramp, and the acceleration of the crate is 0.16 ms-2. The coefficient of sliding friction between the crate and the ramp is 0.35....
A crate of toys (25 kg) is at rest on a rough horizontal surface. The coefficients of static and kinetic friction (respectively) are 0.5 and 0.2. What minimum force is required to cause the crate to move? Assuming this force is maintained once the crate begins moving, with what acceleration does the crate move?
A 62-kg skier starts from rest at the top of a ski jump, point A inFig. 8-41, and travels down the ramp.If friction and air resistance can be neglected, (a)determine her speed vb when she reaches the horizontal end of the ramp at B.(b)determine the distance s to where she strikes the ground at C.
a 20.0 kg box is pushed across a rough level floor by means of a A 20.0 kg box is pushed across a rough level floor by mEANS of a 5ooN FORCE IP) applied at an angle of 370 below the horizONTAL AS SHOWN. tv P=500N g=9,80 M/A² (a) Draus a free-body ---... 2oka I THTRTTITOT - diagram of the box using the point-mass model. (6) Find the magnitude of the normal contact force (n) that acts on the box....
A 30.0-kg crate is pushed across a rough floor by a horizontal force of 100 N of kinetic fiction between the crate and the floor is 0.100. If a total of 80.5 1 of work the crate, how far was it moved along the floor? done 21. Find the magnitude of the force ating on a 3.0-kg (assume all units in MKSo-ms cated at -2.0 m inside a potential 22. Which one of the following statements is false? More power...
To move a large crate of mass 32.4 kg across a rough floor, you push on it with a force F at an an angle of 8-19.2° below the horizontal, as shown in the figure below. Calculate the acceleration of the crate i the applied force is 341 N and the coefficient of kinetic friction is 0.441
please qickly 2) A 20 kg box initially at rest is pushed 5 m along a rough, horizontal floor with a constant applied horizontal force of F = 120 N. The coefficient of kinetic friction between box and floor is 0.1, find; a) (12 p) Calculate the work done by the applied force, the gravitational force, the normal force, the friction force (Wr.W, W.,WR) b) (4 p) Find the change in kinetic energy of the box c) (4 p) Find...
A 1,440-N crate is being pushed across a level floor at a constant speed by a force of 250 N at an angle of 20.0° below the horizontal;(a) What is the coefficient of kinetic friction between the crate and the floor?(b) If the 250-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure (b), what will be the acceleration of the crate? Assume that the coefficient of friction is the...
To drag a 25.0-kg crate across a rough concrete parking lot, you decide to Pull horizontally with 100 N of force on a rope attached to the crate. The coefficient of kinetic friction between the crate and the concrete is mu_k = 0.30. Draw a free body diagram of the crate, along with a coordinate system. What is the magnitude and direction of the force of friction Find the acceleration of the crate. Once you get the crate sliding, how...
A 1300 N crate is being pushed across a level floor at a constant speed by a force F of 400 N at an angle of 20° below the horizontal as shown in Figure P4.37a. NI (a) Figure P4.37 (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 400 N force is instead pulling the block at an angle of 20° above the horizontal as shown in Figure P4.37b, what will be...