The girl tosses a 0.65 kg ball towards the wall with an initial velocity V, of 10 m/s. As the ball hits the wall, it bounces back and falls onto the ground at C where it rebounds up from Cagain with a velocity of Ve as shown in Figure 1. Assuming the coefficient of restitution of the wall and the ground is 0.6 and 0.45 respectively, determine: a) b) c) d) e) The time for the ball to strike the wall at B. The velocity at which it strikes the wall at B. The magnitude and direction of the velocity of the ball rebounds from the wall at B. The magnitude of the velocity of the ball rebounds from the ground at C. The total energy loss for the collision at C.

The girl tosses a 0.65 kg ball towards the wall with an initial velocity V, of 10 m/s. As the ball hits the wall, it bounces back and falls onto the ground at C where it rebounds up from Cagain with a velocity of Ve as shown in Figure 1. Assuming the coefficient of restitution of the wall and the ground is 0.6 and 0.45 respectively, determine: a) b) c) d) e) The time for the ball to strike the wall at B. The velocity at which it strikes the wall at B. The magnitude and direction of the velocity of the ball rebounds from the wall at B. The magnitude of the velocity of the ball rebounds from the ground at C. The total energy loss for the collision at C.

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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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

The girl tosses a 0.65 kg ball towards the wall with an initial velocity V₁ of 10 m/s. As the ball hits
the wall, it bounces back and falls onto the ground at C where it rebounds up from Cagain with a
velocity of Ve as shown in Figure 1. Assuming the coefficient of restitution of the wall and the
ground is 0.6 and 0.45 respectively, determine:
a)
b)
c)
d)
e)
The time for the ball to strike the wall at B.
The velocity at which it strikes the wall at B.
The magnitude and direction of the velocity of the ball rebounds from the wall at B.
The magnitude of the velocity of the ball rebounds from the ground at C.
The total energy loss for the collision at C.
C
30°
VA = 10 m/s
1.5 m
B
3 m

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