Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 4, Problem 90P
(a)
To determine
The free-body diagram for
(b)
To determine
The tension in the string and the acceleration of
(c)
To determine
The time taken by the block of
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A ramp with a height of 10.0 m has an inclination angle of 30 degrees. A 12.0 kg block is sitting on top of the ramp initially at rest. Assuming the ramp's surface is frictionless, calculate the block's acceleration amd velocity when it reaches the base of the ramp. How much force did the block experience down the ramp and what must the coefficient of static friction be in order for the block to not move?
Objects with masses m, 15.0 kg and m,- 6.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m, tals 1.00 min 1.20
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A) Your(660N) physics teacher skis down an incline of 12 degrees to the right. The coefficient of kinetic friction between the skis and the snow is 0.01. Draw a free-body diagram of your physics teacher.
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Chapter 4 Solutions
Physics for Scientists and Engineers
Ch. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10P
Ch. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - Prob. 63PCh. 4 - Prob. 64PCh. 4 - Prob. 65PCh. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - Prob. 68PCh. 4 - Prob. 69PCh. 4 - Prob. 70PCh. 4 - Prob. 71PCh. 4 - Prob. 72PCh. 4 - Prob. 73PCh. 4 - Prob. 74PCh. 4 - Prob. 75PCh. 4 - Prob. 76PCh. 4 - Prob. 77PCh. 4 - Prob. 78PCh. 4 - Prob. 79PCh. 4 - Prob. 80PCh. 4 - Prob. 81PCh. 4 - Prob. 82PCh. 4 - Prob. 83PCh. 4 - Prob. 84PCh. 4 - Prob. 85PCh. 4 - Prob. 86PCh. 4 - Prob. 87PCh. 4 - Prob. 88PCh. 4 - Prob. 89PCh. 4 - Prob. 90PCh. 4 - Prob. 91PCh. 4 - Prob. 92PCh. 4 - Prob. 93PCh. 4 - Prob. 94PCh. 4 - Prob. 95PCh. 4 - Prob. 96PCh. 4 - Prob. 97PCh. 4 - Prob. 98P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 4.00-kg puck has a velocity of 3.00im/s at one instant. Eight seconds later, its velocity is (8i+10j)m/s. Assuming the rocket engine exerts a constant horizontal force, find (a) the components of the force and (b) its magnitude.arrow_forwardA 3.00-kg block starts from rest at the top of a 30.0 incline and slides a distance of 2.00 m down the incline in 1.50 s. Find (a) the magnitude of the acceleration of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting on the block, and (d) the speed of the block after it has slid 2.00 m.arrow_forwardKinetic friction is proportional to the normal force (Eq. 5.9). Why should there be an intimate connection between these two forces?arrow_forward
- Give reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?arrow_forwardOn June 25, 1983, shot-putter Udo Beyer of East Germany threw the 7.26-kg shot 22.22 m, which at that time was a world record. (a) If the shot was released at a height of 2.20 m with a projection angle of 45.00, what was its initial velocity? (b) If while in Beyer’s hand the shot was accelerated uniformly over a distance of 1.20 m, what was the net force on it?arrow_forwardA 30.0 kg box is pulled along a horizontal surface by a force of 150 N applied at a 30° above the horizontal. Assuming a coefficient of kinetic friction of 0.15, draw the free body diagram and then calculate the acceleration of the box.arrow_forward
- ew Policies rrent Attempt in Progress The drawing shows three objects. They are connected by strings that pass over massless and friction-free pulleys. The objects move starting from rest, and the coefficient of kinetic friction between the middle object and the surface of the table is 0.105. (a) What is acceleration of the three objects? (b) Find the tension in the string attached to the 25.0 kg object. (c) Find the tension in the string attached to the 10.0 kg object. (a) Number i (b) Number i (c) Number i eTextbook and Media Save for Later 10.0 kg Units Units Units 80.0 kg 10 25.0 kg Attempts: 0 of 3 used Submit Answarrow_forwardWhen an ice hockey puck weighing 90 g is stationary on the ice, a minimal force of 0.2 N is required to move it. a) Calculate the coefficient of static friction. b) If the puck covers the first 10 cm in 0.5 s (while the 0.2 N force is still applied on the puck), calculate the kinetic friction coefficient.arrow_forwardA 15 kg block rests on a horizontal plane a rope is attach at the other end of the block. Find the acceleration of the block if the block is suddenly pulled by the rope and Tension applied is 60 N at an angel of 30 degrees. The coefficient of kenitic friction between the block and the plane is 0.30.arrow_forward
- The system moves at 1.50 m/s² while the inclined planes are rough. a) Determine the coefficient of kinetic friction between the incline and the blocks, assuming that they are the same on both sides. b) Calculate also the tension in the stringarrow_forwardBox 1, a wooden box, has a mass of 8.60 kgand a coefficient of kinetic friction with theinclined plane of 0.35. Box 2, a cardboard box,sits on top of box 1. It has a mass of 1.30 kg.The coefficient of kinetic friction between thetwo boxes is 0.45. The two boxes are linked bya rope which passes over a pulley at the top ofthe incline, as shown in the diagram. The inclined plane is at an angle of 38.0° with respect to thehorizontal. (a) What is the acceleration of each box? (b) Now consider all surfaces are frictionless. Then calculate the amount of force with directionto prevent the sliding of the boxes.arrow_forwardA 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the figure. The string pulls on the 15-kg block parallel to the surface of the ramp. Find the magnitude of the acceleration of the 19-kg block after the system is gently released? 6. A) 4.0 m/s2 B) 3.8 m/s2 C) 4.2 m/s2 D) 4.5 m/s2 Final formula: 15 kg 19 kg 20° Required steps: 1) Draw free body diagram 2) Choose reference frame 3) Find vectors components 4) Apply Newton's 2nd law 5) Solve for the acceleration. 6) Check units 7) Substitute numerical valuesarrow_forward
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