0 m A tennis ball bounces off the floor and then the wall. The ball has a coefficient of restitution e = 0.7 with the floor and the wall. The initial velocity of the ball is vi 2.5 at 35 below the horizontal axis. Determine the magnitude of the final velocity and angle with respect to the wall. S |vf|= m ⒸO UBO E S

0 m A tennis ball bounces off the floor and then the wall. The ball has a coefficient of restitution e = 0.7 with the floor and the wall. The initial velocity of the ball is vi 2.5 at 35 below the horizontal axis. Determine the magnitude of the final velocity and angle with respect to the wall. S |vf|= m ⒸO UBO E S

Name: 0mA tennis ball bounces off the floor and then the wall. The ball has
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: 0mA tennis ball bounces off the floor and then the wall. The ball has a coefficient of restitution e = 0.7 withthe floor and the wall. The initial velocity of the ball is vi 2.5 at 35 below the horizontal axis.Determine the magnitude of the final ve

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

See similar textbooks

Similar questions

30 mg = 1600 kg ma = 1200 kg VA1 = 50 km/h V81 = ? The two cars, A, and B, collided at right angles at the intersection. During the collision, the cars became entangled (AB) and moved off together to bump into a huge old tree. Calculate the velocity (km/h) of car B just before the collision with car A at the intersection. Right after bumping with the tree, determine the new velocity of the "entangled" cars. Also, compute the percent energy lost from the cars after the two collisions occurred. Neglect the geometry of the cars before and after the collision. Coefficient of restitution between the entangled cars (AB) and the tree (C), e43c = 0.18
Two identical hockey pucks moving with initial velocities vA and vg collide as shown. If the coefficient of restitution is e = 0.63, determine the velocity of each puck just after impact. Also calculate the percentage loss n of system kinetic energy. Assume vA = 6.1 m/s, v8 = 12.0 m/s, o = 20°. UA Answers: VA' = ( i i + j) m/s Vg' = ( i i + j) m/s n = i %
3 liter per 26 sec is discharged from nozzle to impact 60°target if the distance between nozzle and target equal four times a nozzle's diameter and the diameter for nozzle equal 1cm depend on this information to answer following questions: 1. determine the velocity at nozzle 2. determine the impact force 3. if we change the target to hemispherical, determine the ration between two forces
As part of an obstacle course, an athlete must kick a soccer ball into al meter wide and 10 meter deep pit such that the ball hits a target at the bottom of the pit. In practice, a dynamics student that is participating in the race kicks the soccer ball such that the soccer ball will bounce off the far wall of the pit 5 meters below the surface and head towards the target. If the velocity of the ball before striking the wall at point at point A is vA=3.21- 10j , determine the t-component of the ball velocity vector (in m) after striking the wall. The size of the ball and the target are negligible relative to the dimensions of the pit, the gravity acceleration must be considered as g = 10 and the coefficient of restitution at point A is e =0.55. 5 m 10m Im 目

A projectile is fired vertically from point A with an initial speed of 240 ft/sec. Relative to an observer located at B, at what times (find two times t₁ < t₂) will the line of sight to the projectile make an angle of 38° with the horizontal? Compute the magnitude of the speed of the projectile at each time, and ignore the effect of aerodynamic drag on the projectile. Answers: = B t2 = i i 38° 345' 240 ft/sec A sec, |v|= i sec, |v|= i ft/sec ft/sec
21 I = 0₁ Favg = A baseball reaches a batter at v₁ 90 mph, at an angle 0₁ = 10°. The batter strikes the ball with their bat, and the immediate exit velocity is measured, v₂ = 115 mph, 0₂ 40°. A baseball has a weight of 5 US oz. Determine the impulse delivered by the baseball bat during the swing. = If the bat was in contact with the ball for 5 ms, determine the average force the bat delivered to the ball. lbs 0₂ lb 02
Q2/ A force F = (7 i—10j)N acts on a particle that a displacementd = (2i + 3j)m .find the work done by the particle, and the angle between force and displacement? Q3/ A body of mass 200 kg is travelling at speed of Vi=250 m/sec .with a constant force of 100N for a displacement of 20 m. determine the final speed of the body ?
A projectile (m, = 65 g) traveling at v = 550 m/s strikes and becomes embedded in the block (m, = 49 kg), which is initially stationary. Compute the energy lost during the impact. Express your answer as an absolute value |AE| and as a percentage n of the original system energy E. Answers: JAE| = n = i
TOTAL WEIGHT =10% 8)A billiard ball moving at 10m/s along the +ve x – axis collides elastically with a second billiard ball at rest. The balls have the same masses. After the collision, the incoming ball moves off at an angle of 37°, to the original direction of motion, and the second ball deflects at an angle 0, to the same axis. Find the speeds of the two balls after collision((Vị & V2) and the angle 02 respectively. (A)0m/s, 8m/s & 53° (C)0m/s, 6m/s & 53° (B)8m/s, 6m/s & 53° (D)None of the above. 9) In which one of the following case the work done is zero? (A) F = 4î - 3j -k N and i= 31 + 4j m (B) F= î + ĵ+kN and = î+j+km (C) F= 2i + j N and i= 3i - 2k m (D) F = 2î - j- k N and ř = 3i – 4j-k m 10)Force acting on the particle varies with x, as shown in the figure below. Calculate the work done by the force as the particle moves from x = o to x = 6m. F(N) x(m) 6. 1 2. -41 (A)25J (B)20J (C)5J (D)10J Figure -1 11) A 12kg object, originally at rest, suddenly explodes in to three masses :…
= Q1: The 1.5-kg ball is given an initial velocity VA 2.5 in the vertical plane at position A, where the two horizontal attached springs are unstretched. The ball follows the dashed path shown and crosses point B, which is 12 cm. directly below A. Calculate the velocity of the ball at B. Each spring has a stiffness of k = 1 ª N m VA 30 cm 30 cm 12 cm A UB B Fig. 1
Determine the coefficient of restitution e between ball A and ball B. The velocities of A and B before and after the collision are shown in the following figure. Use vA, = 4 m/s, v B, = 6 m/s, vA, = 5 m/s and v B, = 6 m/s, VB1 VA1 B A Before collision VB2 VA2 B A After collision Insert your answer here, correct up to at least a third decimal place.
The ball strikes the smooth wall with a velocity of (Vb)1 = 35 m/s as shown in the following figure. The coefficient of restitution between the ball and the wall is e = 0.46. Use 01 = 23. (Vb)2 02 (Vp)1 Determine the magnitude and direction of velocity (Vp)1 in m/s. Insert your answer correct up to at least a third decimal place. |(v5)2| = m/s 02 = degrees