Part II A box slides down a frictional ramp. As it does so, a man pushes on the block. The block slides from the top of the ramp to the bottom of the ramp. Assume: • The ramp has a length of 4.97 m • The ramp is elevated 20° from the horizontal • The box has a mass of 50 kg • The man pushes parallel to the ramp with a force of 30 N The ramp and box have a of o.2 and H, of o.8 The box starts at the top of the ramp with a speed of i m/s Determine: D. The work done by the normal force E. The velocity of box at the bottom

Part II A box slides down a frictional ramp. As it does so, a man pushes on the block. The block slides from the top of the ramp to the bottom of the ramp. Assume: • The ramp has a length of 4.97 m • The ramp is elevated 20° from the horizontal • The box has a mass of 50 kg • The man pushes parallel to the ramp with a force of 30 N The ramp and box have a of o.2 and H, of o.8 The box starts at the top of the ramp with a speed of i m/s Determine: D. The work done by the normal force E. The velocity of box at the bottom

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

A body falls from rest from point A at a height of 15 m down the ramp shown in the figure. There is only friction in the horizontal section BC that has a length Δx = 4m , determine how fast it passes through point D located at a height of 5 m if the coefficient of kinetic friction between the body and the surface in the section BC is µ=0.6 solve and choose the correct option A) 12.33 m/s B) 123.3 m/s C) 1.233 m/s D) 0.123 m/s E) 1233 m/s
As it can be seen from the figure below, an 18kg hanging box is connected by a light, inextensible string over a light, frictionless pulley to a 10kg block that is pulled by an external force having magnitude F to the left with accelerated speed. The frictional force between the block and the surface will be: a) F, = F b) F, = μ, N C) F,=H₂N d) 0 TONG Friction Surface a Ob O C O d Frictionless Pulley
Question No 2 The conveyor belt delivers each 12-kg crate to the ramp at A such that the crate's speed is VA = 2.5 m/s, directed down along the ramp. If the coefficient of kinetic friction between each crate and the ramp is µk = 0.3, determine the speed at which each crate slides off the ramp at B. Assume that no tipping occurs. Take 0 = 30°. Calculate the speed if O = 60°. Is it greater or less? Why? VA = 2.5 m/s IX 区 3 m 区
Part A A 55 g rock is placed in a slingshot and the rubber band is stretched. The magnitude of the force of the rubber band on the rock is shown by the graph in (Figure 1). The rubber band is stretched 30 cm and then released. What is the speed of the rock? Express your answer with the appropriate units. HÁ Vf = Value Figure < 1 of 1 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining FSp (N) 60- Return to Assignment Provide Feedback 40- 20 x (cm) 30 10 20
Please answer question 8 parts a and d
A body is falling freely under the action of gravity alone in vacuum. Which of the following statements is NOT true? a. The acceleration of the object remains constant O b. Total mechanical energy increases O c. The speed of the object increases with time O d. Gravitational potential energy is transformed to kinetic energy
Rock Climber Sliding Down a Smooth Slab 9.6 m Hk =0.72 %3D 56° Consider the rock climber climbing on a smooth slab, as shown above: the coefficient of kinetic friction between the climber's rock shoes and the rock is 0.72 the belayer cannot see the climber who is out of sight beyond the edge of the slab the belayer cannot hear the climber because the wind is blowing very hard The climber loses his footing and slides down the slab from rest. How long after the climber loses his footing does the belayer realize she needs to catch the climber's fall? [answer: about 2.1 s] FNET = ma W = mg g = 9.81 m/s? Ax = vot + ½ at?
1- all info is in attachment, thank you
answer Q 5
A 2.0 kg object is moving to the right with a speed of 1.0 m/s when it experiences the force shown in the figure. What are the object’s speed and direction after the force ends? Express your answer to two significant figures and include the appropriate units. Enter positive value if the speed is directed to the right and negative value if the speed is directed to the left.
The 1.1 kg physics book in figure is connected by a string to a 550 g coffee cup. The book is given a push up the slope and released with a speed of 3.5 m/s. The coefficients of friction are μ = 0.50 and μ = 0.20. (Figure 1) Figure 20⁰ 1 of 1 Part A How far does the book slide? Express your answer with the appropriate units. Value Submit Part B μA Submit O stick to the slope O slide back downhill Provide Feedback Units Request Answer At the highest point, does the book stick to the slope, or does it slide back down? ? Request Answer
None