FOR G-11 FROM UNIT-4* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of58N, at a constant velocity.a) Draw the free- body diagram.b) Determine the normal force.c) Determine the frictional force.d) Determine the coefficient of friction.* (2) Trolley is set move on a smooth track that is banked at angle of 30". For a trolley moving with aspeed of 8m /s to round the curve.a) Draw the free- body diagramb) what is the radius of the banked surface?* (3) Two billiard balls of equal mass undergo a perfectly elastic head- on collision. If the speed ofone ball was initially 2.00m/s, and of the other 3.00m/s in the opposite direction, what will be theirspeeds after the collision?* (4) A billiard ball moving at 10m/s along the +ve x – axis collides elastically with a second billiardball at rest. The balls have the same masses. After the collision, the incoming ball moves off at anangle of 37°, to the original direction of motion, and the second ball deflects at an angle 02 to thesame axis. Find the speeds of the two balls after collision and the angle 02.* (5)Consider a 4kg & 6kg blocks are sliding down an inclined plane whose inclinationfrom the horizontal is 370 .The blocks are in contact but are not fastened together asshown in figure - 1. (use sin370 = 0.6, Cos370 = 0.8 and g = 10m/s2)Mi= 4kgFind : (a) the contact force b/n mss-1 & 2H1 = 0.2M= 6kg(b)the acceleration the system.H2 = 0.4370(6) What horizontal force must be applied to the cart shown in Figure - 2, in orderthat the blocks remain stationary relative to the cart? Assume all surfaces, wheels, andpulley are frictionless. (Hint: Note that the force exerted by the string accelerates M.)Figure - 2Page 1

Answered: Image /qna-images/answer/52f2c661-c90a-4fb9-8534-e213d101c445.jpg

* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of 58N, at a constant velocity. a) Draw the free- body diagram. b) Determine the normal force. c) Determine the frictional force. d) Determine the coefficient of friction. moth truck that is banked at angle of 30'. For a trolley moving with a

* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of 58N, at a constant velocity. a) Draw the free- body diagram. b) Determine the normal force. c) Determine the frictional force. d) Determine the coefficient of friction. moth truck that is banked at angle of 30'. For a trolley moving with a

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

An automobile is going up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between the tires and the road is 0.7. a) What minimum distance does it take to stop the car? b) What minimum distance would it take to stop the car if it were going down the grade?
The game of tetherball involves a ball tied to a rope the other end of which is tied to the top of a pole. Players try to hit the ball around the pole in opposite directions until it is completely wrapped around the pole. What forces make the ball move in a circle around the pole? a) The tension in the rope accelerates the ball in the direction of its motion b) Gravity and the tension in the rope combine to make a horizontal force toward the pole c) Gravity pulls the ball down and the tension in the rope pulls the ball toward the pole
1. Steve pushes a box across a level floor with a constant horizontal force. This causes the box to move at a constant speed, v. The force from Steve: a. has the same magnitude as the weight of the box. b. equals the sum of the box's weight and the total frictional forces opposing the box's motion. c. has the same magnitude as the frictional forces opposing the box's motion. d. has greater magnitude than the frictional forces opposing the box's motion. e. has greater magnitude than the weight of the box. 2. Steve now doubles the force he applies to th box from the previous problem. Which of the following is true? a. The box will move at double the previous speed. b. The box will move with a continuously increasing speed. c. The box will increase speed for a while, then move at a constant speed. d. The box will continue to move at the same speed for a while, then continually increase speed. e. The box will move at a greater constant speed, but not necessarily double the speed.
4. You are pushing horizontally with a 300 N force on a box that is on an inclined plane as shown. The mass of the box is 30 kg and the incline is at a 25 degree angle off the Fapplied horizontal. The coefficient of kinetic friction between the box and the incline is 0.3, and the coefficient of static friction i 0.4. Assuming the box was at rest at t=0 when the force is initially applied, is the box moving up the ramp, down the ramp, or is it at rest after the force has been applied? 25⁰
A 60 kg student rides on a roller coaster that makes a vertical loop. a. Draw a free-body diagram for when the student is at the bottom of the loop. B.if the radius of the loop is 30m,and the roller coaster is traveling at 20 m/s at the bottom of the loop,what is the net force acting on the student in the vertical direction? C.What force does the seat apply to the student when at the bottom of the loop?
Eliza pushes a carboard box across a level carpeted room at a constant speed v0. The constanthorizontal force applied by Eliza must be…A) the same magnitude as the weight of the boxB) greater than the weight of the boxC) the same magnitude as the friction force acting on the boxD) greater than the friction force acting on the boxE) greater than both the friction force acting on the box and the weight of the box
Saved :02- Chapter 2 Part 1 i Help Required information Traction is a medical procedure used to treat muscle and skeletal disorders by strategically applying one or more forces to a person's body for a specific length of time. Take F= 55 N. 40 N F 35°f 25° y 15° Determine the x and y components of the resultant force vector at A due to the 40 N and 55 N forces. N. N and the y component of the resultant is The x component of the resultant is
Atugboat tows a ship at a constant velocity The tow hamess consists of a single tow cable attached to the tugboat at point A that spits at point B and attaches to the ship at points C and D The two rope segments BC and 80 angle away from the center of the ship at angles of d310 and 9 240 respectively The tugboat puils with a force of 3400 lb What are the tensions Tho and Tan in the rope segments BC and 807 Express your answers numerically in pounds to three significant figures separated by a comma View Available Hintl) 180 ΑΣΦ 111 voc Tac Tho Submit 2 lb
you need to push the couch 4 m to the other side of the room. After the initial push to get it going you push on the 90 Kg couch with a steady horizontal force of 600 N. The coefficient of kinetic friction between the couch and the floor is 0.6. 1) what is the magnitude and direction of the fictional force on the couch? 2) what is the magnitude and direction of the net force on the couch? 3) what is the magnitude and direction of the acceleration of the couch?
Suppose that the block moves across the surface with constant speed under the action of a horizontal 3.0-N force Which one of the following statements concerning this situation is false? The frictional force on the block has magnitude 3.0N. B. The net force on the block is zero newtons. The block is not accelerated. The direction of the total force that the surface exerts on the block is vertically upward
6A. ficA donkey pulls a block across a rough horizontal surface at constant speed v by applying force F, as shown below. The arrows in the diagram correctly indicate the directions, but not necessarily the magnitudes, of the various forces on the block. Which of the following pairs of relations among the force magnitudes W, k, N and F must be true? a. F=k and N= W 1 p0ol boilgge ots (0) 3onol aoiton o (d) not lanoiinitveg o (o) i2e looge oma2 or N 10 ,wole stal ovom xod od 2o0 (b) b. F=k and N> W c. F=k and Nk and N= W F e. F>k and Nk and N>W g. FW i. F
A 9000kg freight truck attempts to stop on a gravel paved slope with a coefficient of friction of 0.7. A.) What is the maximum slope the freight truck can sustain without sliding backwards? B.) What is the static friction force between the tires and the road at this maximum angle? C.) If the slope was 15 degrees what is the static friction force between the tires and the road? D.) What is the maximum mass a freight truck could have on the 15 degree slope without sliding?