Question

a body is thrown vertically upward with volcity u, the greatest height h to which it will rise is​

Answer 1

Answer:

The body that is thrown vertically upward with velocity u will have final velocity  v=0 at  the greatest height h.

Substituting the given values in the third equation of motion, v2=u2+2as

we have 0=u2−2gh. (taking g in the upward direction)

or h=2gu2.

Answer 2

Explanation:

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Answered

A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is

Asked by stsurya20 | 7th Jul, 2020, 08:01: PM

Expert Answer:

we need to use the formula, v2 = u2+2as ;

v is final velocity, when the object reaches maximum height final velocity is zero,

hence v = 0

when an object is undergoing free fall or is acting against the direction of gravity,

s = h ;

h is maximum height

a = acceleration = -g, where g is acceleration due to gravity;

we have

begin mathsize 12px style 0 space equals space u squared space minus space 2 cross times g cross times h space space semicolon space h e n c e space

h space equals space fraction numerator u squared over denominator 2 g end fraction end style