4 A ball thrown vertically upward reaches a maxi-mum height of 30. meters above the surface ofEarth. At its maximum height, the speed of theball is(1) 0.0 m/s(2) 3.1 m/s(3) 9.8 m/s(4) 24 m/s

In a projectile motion, when the ball achieves its maximum height, it starts to accelerate downward…

Answered: 4 A ball thrown vertically upward…

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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49. Given these two velocities, C = (4î +2ĵ -2k̂) m/s and E= (5î -4ĵ +5k̂), find the magnitude of the velocity, v= 2C –E. a. 12.4 m/s b. 17.0 m/s c. 21.0 m/s d. 27.6 m/s
4, Time t (s) Position x (m) Velocity v (m/s) v/t (unit=s) 1 0.167 0.257 0.5005 0.7007 0.449 O.140 0.59% 0.633 0.412 0.663 0.574 0.623 0,377 0.901 t.1015 1.3020 0.504 0.673 10868 1.071 1.305 0.646 0.593 6. 15025 0.972 1.7031 1,9038 8.
20
If the scalar velocity of a particle moving on the x-axis is increasing, the particle's velocity and acceleration can be, respectively: A. negative and positive. B. negative and null. C. negative and negative. D. positive and negative. E. positive and null.
An object's position is given by r(t) = [a + ßt] î+ [y+ot²] 3 where • d = 2.86 m B 3.5 m/s • Ύ 3.15 m • σ = -4.1 m/s² t = 7.2 s = What is its speed v at t = 7.2 s?
2. A man decided to ride his car at 10 kph for the first 5 seconds. He then accelerates at 1 m/s? for the next 5 seconds, 2 m/s? for the next 5 seconds, 3 m/s² for the next 5 seconds, and so on and so forth. (a) At what time will he reach a velocity of 60 kph. (b) At what time will he reach a distance of 0.5 km.
6. Superman slams head-on into a train moving at 16 m/s. He brings the train to a stop in an incredible 1/10³s, thereby saving the love of his Kryptonite wife, Lois Lane who was tied to the railroad tracks. Lois was just 10 m down the tracks from the point where superman struck the train. What is the deceleration of the train? a. -16 x 10² m/s² b. -1.6 x 10³ m/s² c. -16 x 104 m/s² d. -1.6 x 104 m/s² 7. Refer to problem #7, How far from Lois did the "The Man of Steel" finally stop the train? a. 2 x 10⁰ m b. 8 x 10-³m c.1.6 x 10-²m d. 8 x 10-²
1. A pregnant woman experiences labor pains, so the husband decided that she will be brought to the nearest hospital, 70 kilometers away. Accordingly, her wife delivered the baby after an hour. Suppose the car that was used to bring the pregnant woman has a speed of 50 km/h. Assume that the speed of light is 60 km/h, will the pregnant woman reach the hospital? Prove your answer with numerical solution.
Ferris wheel with a diameter D = 11 m, make one revolution every 18 s. When he is at the top, essentially a diameter above the ground, he released a ball. How far (in m) from the point on the ground directly under the release point does the ball land? (Ax = ? m) 3.48 .a 2.47.b 3.89.c 1.82 .d 2.9.e
2. The motion of a particle is defined by the relation x= t – 12t? – 40,where x is expressed in metres and t in seconds. Determine the position, velocity, and acceleration when t=2 s. (B/J 11.1) Answer: 7(2) = -72î, v(2)=-16î, ā(2) = 24î
An object started to slide down from rest along an inclined surface with a net acceleration of 8.4 m/s?. find the distance (in units of m) covered by the object in 7.1 s. a Select one: OA 211.7 OB. 29.8 OC 105.9 OD. 59.6 OE 423.4 Activate Windows Go to Settingsto v page Next page ENG 43 UK 5/2
2. A group of students conducted a projectile experiment in which they fired a projectile at an unknown angle with varying speed. Students took the following data for projectile range and speed. Determine: a. What kind of graph comes out if initial velocity vs. range is plotted? R(m) Volm/s) 0.2 1.71 0.4 2.42 0.6 2.97 0.8 3.43 3.83 1.2 4.2 1.4 4.53 1.6 4.84 1.8 5.14 2 5.42 b. What is the linearization method for this graph? c. Make the linearized graph and determine its slope with its units. d. Determine the initial angle at which the projectile was launched.

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4 A ball thrown vertically upward reaches a maxi- mum height of 30. meters above the surface of Earth. At its maximum height, the speed of the ball is (1) 0.0 m/s (2) 3.1 m/s (3) 9.8 m/s (4) 24 m/s