Situation 11. A 50-1b object is moving horizontally to the right with a velocity of 10 fps, collides obliquely with a 40-lb object that is moving up to the left at 30 degrees with the horizontal at 13 fps. If the coefficient of restitution is 0.75, Determine the velocity of the lighter object after the impact. a. 11.44 fps b. 6.50 fps c. 9.22 fps d. 14.41 fps Determine the direction of the lighter object after the impact. a. 34.64 degrees with the vertical b. 55.36 degrees with the horizontal c. 36.46 degrees with the horizontal d. 55.36 degrees with the vertical A 6 kg ball and a 4 kg ball collides on a frictionless horizontal plane along a straight line path with speeds of +9 and 12 m/s respectively. Determine the speed of the 6 kg ball after impact if the impact is elastic. a. +13.2 m/s b. -7.8 m/s c. -13.2 m/s d. +7.8 m/s

Situation 11. A 50-1b object is moving horizontally to the right with a velocity of 10 fps, collides obliquely with a 40-lb object that is moving up to the left at 30 degrees with the horizontal at 13 fps. If the coefficient of restitution is 0.75, Determine the velocity of the lighter object after the impact. a. 11.44 fps b. 6.50 fps c. 9.22 fps d. 14.41 fps Determine the direction of the lighter object after the impact. a. 34.64 degrees with the vertical b. 55.36 degrees with the horizontal c. 36.46 degrees with the horizontal d. 55.36 degrees with the vertical A 6 kg ball and a 4 kg ball collides on a frictionless horizontal plane along a straight line path with speeds of +9 and 12 m/s respectively. Determine the speed of the 6 kg ball after impact if the impact is elastic. a. +13.2 m/s b. -7.8 m/s c. -13.2 m/s d. +7.8 m/s

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

Situation 11.
A 50-lb object is moving horizontally to the right with a velocity
of 10 fps, collides obliquely with a 40-lb object that is moving up to
the left at 30 degrees with the horizontal at 13 fps. If the coefficient
of restitution is 0.75,
Determine the velocity of the lighter object after the impact.
a. 11.44 fps
b. 6.50 fps
c. 9.22 fps
d. 14.41 fps
Determine the direction of the lighter object after the impact.
a. 34.64 degrees with the vertical
b. 55.36 degrees with the horizontal
c. 36.46 degrees with the horizontal
d. 55.36 degrees with the vertical
A 6 kg ball and a 4 kg ball collides on a frictionless horizontal
plane along a straight line path with speeds of +9 and - 12 m/s
respectively. Determine the speed of the 6 kg ball after impact if
the impact is elastic.
a. +13.2 m/s
b. -7.8 m/s
c. -13.2 m/s
d. +7.8 m/s

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