Q.1: A ball is tossed with a velocity of 10 m/s directed vertically upward from a window located 20 m above the ground. Knowing that the acceleration of the ball is constant and equal to 9.81 m/s2 downward, determine: (a) the velocity v and elevation y of the ball above the ground at any time t, (b) the highest elevation reached by the ball and the corresponding value of t, (c) the time when the ball will hit the ground and the corresponding velocity. Draw the v-t and y-t curves. = -10 m/s a-9.81 m/s Yo +20 m JH HASSAN

Q.1: A ball is tossed with a velocity of 10 m/s directed vertically upward from a window located 20 m above the ground. Knowing that the acceleration of the ball is constant and equal to 9.81 m/s2 downward, determine: (a) the velocity v and elevation y of the ball above the ground at any time t, (b) the highest elevation reached by the ball and the corresponding value of t, (c) the time when the ball will hit the ground and the corresponding velocity. Draw the v-t and y-t curves. = -10 m/s a-9.81 m/s Yo +20 m JH HASSAN

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

Q.1: A ball is tossed with a velocity of 10 m/s directed vertically upward from a window located
20 m above the ground. Knowing that the acceleration of the ball is constant and equal to
9.81 m/s2 downward, determine:
(a) the velocity v and elevation y of the ball above the ground at any time t,
(b) the highest elevation reached by the ball and the corresponding value of t, (c) the time when
the ball will hit the ground and the corresponding velocity. Draw the v-t and y-t curves.
= +10 m/s
Fa-9.81 m/s2
Yo = +20 m
JH HASSAN

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