What is the minimum work needed to push a 900 kg car 960 m up along a 8.5° incline? Ignore friction. Express your answer using two significant figures. ΜΕ ΑΣΦ A 9.5 10 Submit Previous Answers Request Answer × Incorrect; Try Again; One attempt remaining Part B ? Assume the effective coefficient of friction retarding the car is 0.22. Express your answer using two significant figures. ΕΠΙ ΑΣΦ Amin2 = Submit Request Answer ? J J

What is the minimum work needed to push a 900 kg car 960 m up along a 8.5° incline? Ignore friction. Express your answer using two significant figures. ΜΕ ΑΣΦ A 9.5 10 Submit Previous Answers Request Answer × Incorrect; Try Again; One attempt remaining Part B ? Assume the effective coefficient of friction retarding the car is 0.22. Express your answer using two significant figures. ΕΠΙ ΑΣΦ Amin2 = Submit Request Answer ? J J

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)...

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1) Consider the swinging bob, as shown, is released from position A₁. Assume no friction. (a) Calculate the maximum weight of the bob the string OA with length / can support. (b) Calculate speed of the bob if its height is h from position A₂. A₁ A A₂
Question 10 A 10.0 kg child on a 5.0 kg sled, starting from rest, goes down a frictionless hill with a height of 3.25 m. As soon as it reaches the bottom of the hill the sled hits a gravel patch on level ground with a coefficient of friction of 0.72. How far does the sled travel before coming to a stop? (1017) A) 02.34 m B) 067.71 m C) 00.16 m D) 035.10 m E) 04.51 m
Rank the magnitudes of the following gravitational forces from largest to smallest. If two forces are equal,show their equality in your list. (5 points)a. the force exerted by a 2-kg object on a 3-kg object 1 m awayb. the force exerted by a 2-kg object on a 9-kg object 1 m awayc. the force exerted by a 2-kg object on a 9-kg object 2 m awayd. the force exerted by a 9-kg object on a 2-kg object 2 m awaye. the force exerted by a 4-kg object on another 4-kg object 2 m away
Figure R₁ R6 R₂ www R5 R3
2. The block shown in Figure 2 has mass a7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle 0- 22° to the horizontal. (a) Determine the acceleration of the block as it slides down the plane. (b) If the block starts from rest 12.0 m up the plane from its base, what will be the block's speed when it reaches the bottom of the incline? (c) A block is given an initial speed of 4.5 ms up the 22.0 plane. Figure 2 (i) How far up the plane will it go? (ii) How much time elapses before it retums to its starting point? Ignore friction. [Ans: a) 3.67 ms b) 9.39 ms' c)i) 2.8 m i) 2.5 s] Credit: Physics for scientists & Engineers with modern physics Giancoli a RZ Aug2020
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