M =500kg v16.40 m/s h,-100 m X-110m h. Fk = 250N V-43 m/s The figure depicts the notion of the car from point A to C. If the velocity (Vc)of the car is 16.40 m/s, find the height hc.
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- 3. A ball is thrown upwards at 13.0 m/s toward the ceiling located 6 m above the point where you release the ball. Air resistance is negligible. Objects falling near the earth's surface with no forces acting except gravity have a downwards acceleration of magnitude g. For this problem use g = 10 m/s². Write any equation you use in symbolic form before substituting in numbers. Make a labeled picture with symbols and all relevant values. Put a coordinate system on the a. picture by indicating the location of the origin and position direction. b. Find the time taken to reach the ceiling. Find the velocity just before the ball touches the ceiling. C.3. The car passes point A with a speed of 20 m/s after which its speed is defined by v= (20 – 0.20s) m/s. Determine the magnitude of the car's acceleration when it reaches point B, where s = 51.5 m and x = 50 m. dv Recall: dt dv ds y 1 y = 16 – 625 В S 16 mThe acceleration of a particle is given by a = a√t 5 where A = 2.5 m/s2. At t = 0, v = 6.2 m/s and x=0. ▶ Part A Part B ▾ Part C What is the acceleration at t= 4.5 s? Express your answer using two significant figures. a = Submit Part D ——| ΑΣΦ v= Request Answer What is the speed at t = 4.5 s? Express your answer using two significant figures. ? 15| ΑΣΦ ? m/s² m/s
- QUESTION 2 A ball is thrown straight up in the air. When it reaches a height that is n times smaller than the maximum height it can reach, its speed is v. Calculate the maximum height, in meters. n = 3.9 v = 16.8 m/s to saue all answers.A cart is propelled over an its greatest y coordinate? xy plane with acceleration components a, = 6.8 m/s? and a, = -1.5 m/s2. Its initial velocity has components Vox = 7.3 m/s and voy = 12.4 m/s. In unit-vector notation, what is the velocity of the cart when it reaches Number UnitsPhysics Question
- A motorcycle starts from rest with an initial acceleration of 3.3 m/s?, and the acceleration then changes with distance s as shown. dv Determine the velocity v of the motorcycle when s = 250 m. At this point also determine the value of the derivative - ds 6.6 4.4 2.2 125 250 8, m Answers: V = i m/s dv ds a, m/s²A particle has an acceleration of a=2i + (t-1)j The velocity at t=0 is v0=-2i + 0j and is at the origin at t=0 What is the y position when the x velocity is zero? answer in mWhat is her velocity at 15 s?
- While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.61 m/s. The stone subsequently falls to the ground, which is 17.3 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use ?=9.81 m/s2 for the acceleration due to gravity. A) Impact speed: _________________________ m/s B) How much time is the stone in the air? elapsed time: ____________ sA ball is thrown vertically upward with an initial speed v and reaches a maximum height y1. The same ball is thrown with an initial speed 3v to reach the maximum height y2. What is the correct relationship between y2 and y1? А. y2 = ½ y1 В. y2 = 2 y1 %D С. y2 = 4 y1 y2 = 9 y1 D.A man stands on the roof of a 15.0-m-tall building and throwsa rock with a speed of 30.0 m/s at an angle of 33.0 above the horizontal.Ignore air resistance. Calculate Draw x-t, y-t, vx-t, and vy-t graphs for the motion.