*15-68. A pitching machine throws the 0.5-kg ball towardthe wall with an initial velocity va = 10 m/s as shown.Determine (a) the velocity at which it strikes the wall at B,(b) the velocity at which it rebounds from the wall if e=0.5,and (c) the distance s from the wall to where it strikes theground at C.вVA = 10 m/s301.5 m

The mass of the ball, m = 0.5 kg The initial velocity of ball, vA = 10 m/s The coefficient of…

Answered: *15-68. A pitching machine throws the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Box A is traveling down the smooth incline (0= 17°) and it hits box B, initially at rest, with the velocity of 5 m. Immediately after impact, box A moves up the incline with the velocity of 1 m. Determine the velocity of box B (in m) immediately after impact. Consider ma = 3 kg and mB = 18 kg. The positive direction is shown on the figure. VA В
The 2-kg sphere moves in the x-y plane and has the indicated velocity at a particular instant. Determine its (a) linear momentum, (b) angular momentum about point O, and (c) kinetic energy.
The baseball player A hits the baseball at VA = 40 ft/s and θA = 60° from the horizontal. When the ball is directly overhead of player B he begins to run under it. Determine the constant speed at which B must run and the distance d in order to make the catch at the same elevation at which the ball was hit.
The 64.4-lb slider moves in the vertical plane on a smooth rail. The spring with k = 800 lb/ft is unstretched with the slider at point B. If the slider is released from rest at point A, what is the speed at point C? The slider can be approximated as a particle. 인 it woll 3 ft C abert --www- A B 3 ft
The small collar of mass m = 0.64 kg is released from rest at A and slides down the curved rod in the vertical plane with negligible friction. Find the velocity v of the collar as it strikes the base at B. Set b = 0.45 m, h = 2.87 m. vB = _________m/s
The 15-kg block is subjected to the force shown. Determine its velocity at s= 4m if v= 6 m/s at s=0. Motion occurs to the right. F= (5.1 s)N
5. The 8-kg smooth collar has a speed of 5 m/s when it is at s = 0. Determine the maximum distance s it travels before it stops momentarily. The spring has an unstretched length of 2 m. -1.5 m- -3 m/s k = 100 N/m
Q5. As shown in the image below, the freight cars A and B are approaching each other, and they have a mass of mÃ = 19 Mg and må 16 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are VA,1 2.0 m/s and VB,1 = 1.7 m/s. If the two cars collide and get stuck together, determine the loss of their combined kinetic energy (in kJ) during the collision. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper SI unit. A Your Answer: VA,1 Answer B VB,1 =
2) The collar has a mass of 2 kg and is attached to the light spring, which has a stiffness of 30 N/m and an unstretched length of 1.5 m. The collar is released from rest at A and slides up the smooth rod under the action of the constant 50-N force. Calculate the velocity u of the collar as it passes position B. Ans. V=4.93 m m 1.5 m 30° 50 N k= 30 N/m 2m 3

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