00:01
Hello students there is the question and the question says a body is thrown vertically upward with an initial velocity.
00:06
With an initial velocity like this, this is our surface of the earth.
00:11
And this is the body and the initial speed.
00:15
U is equal to what is the velocity? 19 .6 meter per second.
00:24
Now, if g is equal to minus 9 .8 meter per second squared, then calculate the maximum height attained by the body.
00:33
Okay, okay, okay.
00:34
First of all, we have to calculate maximum height, height, attain, okay? attain by the body, by the body, okay? we know then when the body moves vertically upward at the highest point, at the highest point h.
01:03
Okay, at the highest point h, the final velocity will become zero.
01:07
Then, from the third equation of motion, okay, from the third equation of motion, what is the third equation of motion? what is the third equation of motion? that is v.
01:25
Square, final velocity.
01:26
V is equal to final velocity is equal to u square plus 2a .s.
01:33
What is the value of a? a means acceleration, a is equal to, and the g, gravitational acceleration, that is downward and the velocity is upward, and both are in opposite direction, that's why a is equal to z is equal to, we can return a negative, negative 9 .8 meter per second square...