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1. A 3.0-kg ball with an initial velocity of (4i +3j) m/s collides with a wall and rebounds with a velocity of (-4i + 3j) m/s. What is the impulse exerted on the ball by the wall? A) +24i N s B) -24i N s C) +18j N s D) -18j N s E) +8.0i N s

1. A 3.0-kg ball with an initial velocity of (4i +3j) m/s collides with a wall and rebounds with a velocity of (-4i + 3j) m/s. What is the impulse exerted on the ball by the wall? A) +24i N s B) -24i N s C) +18j N s D) -18j N s E) +8.0i N s

College Physics
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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Please explain me step by step following number 1,2,3,4 use provided formulas sheet plus don’t copy from chegg please
The exam is closed book and closed notes. W Pavr = At Weight: F= mg, ; g= 9.8 m/s?; Fnet = ma; Circular motion: ac = R 1 m v²; Potential energy: Ug = mgy E = E E = U+K Kinetic energy: K = v2 Rotational motion: 0==; = m°r; 1 rev = 2n rad; v = o r; at = a r; a, = r 0 = t+at?; 28a = o - o K= lo ? 0 = 0o + at; T=rx F; T= rFsino; R2 2 + Rin Στ-Ια; Ipoint mass = mr? Idisk = 2 2 :- Ihoop = mR? Irod(center) = mL? Irod(end) = mL? Iball = mR? Ishell = mR? 12 dW P = dt W Pavr = At I= Icom + MD? work: W =t 0; K= 2 W = 2 Rolling: Vcom = Ro K = a Veom 2 T= f,R Fmax = H,Fn Incline: F- mgsin0 F=mgcos0 Angular momentum: Lpoint mass =m rxv L= mrvsin 0; L=m (r,Vy - ryVa)k L= Io LI = L4 m,x1 +m2X2 mıy1 +m2y2 m1 +m2 I o =I 202 X com = Усom m, +m2
Transcribed Image Text:The exam is closed book and closed notes. W Pavr = At Weight: F= mg, ; g= 9.8 m/s?; Fnet = ma; Circular motion: ac = R 1 m v²; Potential energy: Ug = mgy E = E E = U+K Kinetic energy: K = v2 Rotational motion: 0==; = m°r; 1 rev = 2n rad; v = o r; at = a r; a, = r 0 = t+at?; 28a = o - o K= lo ? 0 = 0o + at; T=rx F; T= rFsino; R2 2 + Rin Στ-Ια; Ipoint mass = mr? Idisk = 2 2 :- Ihoop = mR? Irod(center) = mL? Irod(end) = mL? Iball = mR? Ishell = mR? 12 dW P = dt W Pavr = At I= Icom + MD? work: W =t 0; K= 2 W = 2 Rolling: Vcom = Ro K = a Veom 2 T= f,R Fmax = H,Fn Incline: F- mgsin0 F=mgcos0 Angular momentum: Lpoint mass =m rxv L= mrvsin 0; L=m (r,Vy - ryVa)k L= Io LI = L4 m,x1 +m2X2 mıy1 +m2y2 m1 +m2 I o =I 202 X com = Усom m, +m2
1. A 3.0-kg ball with an initial velocity of (4i + 3j) m/s collides with a wall and rebounds with a velocity of (-4i + 3i). m/s. What is the impulse exerted on the ball by the wall? A) +24i N s B) -24i N s C) +18j N s D) -18j N s E) +8.0i N s 2. An 80-g particle moving with an initial speed of 50 m/s in the positive x direction strikes and sticks to a 60-g particle moving 50 m/s in the positive y direction. What is the magnitude of the velocity of the composite system after the collision? A) 36 m/s B) 50 m/s C) 75 m/s D) 86 m/s E) 11 m/s 3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s?. How long does it take to rotate through the first 2 rev? A) 2 s B) 4 s C) 6 s D) 8 s E) 10 s 4. A wheel, with radius R = 0.5 m, initially has an angular velocity of 2.5 rev/s, and is slowing down at a rate of 2 rad/s?. By the time it stops spinning about its center, what distance will a point on the outer rim have traveled? A) 12 m B) 18 m C) 24 m D) 31 m E) 47 m
Transcribed Image Text:1. A 3.0-kg ball with an initial velocity of (4i + 3j) m/s collides with a wall and rebounds with a velocity of (-4i + 3i). m/s. What is the impulse exerted on the ball by the wall? A) +24i N s B) -24i N s C) +18j N s D) -18j N s E) +8.0i N s 2. An 80-g particle moving with an initial speed of 50 m/s in the positive x direction strikes and sticks to a 60-g particle moving 50 m/s in the positive y direction. What is the magnitude of the velocity of the composite system after the collision? A) 36 m/s B) 50 m/s C) 75 m/s D) 86 m/s E) 11 m/s 3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s?. How long does it take to rotate through the first 2 rev? A) 2 s B) 4 s C) 6 s D) 8 s E) 10 s 4. A wheel, with radius R = 0.5 m, initially has an angular velocity of 2.5 rev/s, and is slowing down at a rate of 2 rad/s?. By the time it stops spinning about its center, what distance will a point on the outer rim have traveled? A) 12 m B) 18 m C) 24 m D) 31 m E) 47 m
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