15-34. The 0.15-kg baseball has a speed of v = 30 m/s justbefore it is struck by the bat. It then travels along thetrajectory shown before the outfielder catches it. Determinethe magnitude of the average impulsive force imparted tothe ball if it is in contact with the bat for 0.75 ms.15°30 m/s15°2.5 ml0.75 m100

Answered: 15-34. The 0.15-kg baseball has a speed…

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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The 0.56 kg ball strikes the rough ground and rebounds with the velocity v2 as shown in the following figure. Assume that the ball does not slip when it strikes the ground and neglect the size of the ball and the impulse produced by the weight of the ball. Use v1 18 m/s, v2 = 3 m/s,01 = 51° and 02 = 14°. V2 V1 01 02 Determine the magnitude of the impulse the ground experts on the ball. Insert your answer in Ns correct up to at least a third decimal place.
A railroad car having a mass of 15000 kg is coasting at 1.5 m/s on a horizontal track. At the same time another car having a mass of 12000 kg is coasting at 0.75 m/s in the opposite direction. If the cars meet and couple together, determine the speed of both cars just after the coupling.
Q17. As shown in the image below, the 0.7-kg ball strikes the rough ground and rebounds. The directions of its velocities before and after the strike are shown. If the speeds are v₁ = 27 m/s and v₂ = 12 m/s, determine the magnitude of the impulse (in N.s) the ground exerts on the ball. Assume that the ball does not slip when it strikes the ground, and neglect the size of the ball and the impulse produced by the weight of the ball. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. V₁ Your Answer: 45° Answer 30° 02
The ball with a mass of 5 kg is attached to the rod (with negligible mass), which rotates about O in the horizontal plane. A couple moment M = 0.5 t2 N-m is applied to the system, where t is in seconds. Determine the speed of the ball at the instant t = 10 s starting from rest.
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.
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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