Question

a body is projected with kinetic energy K at an angle of 45 with vertical. it's kinetic energy at the highest point of its trajectory will be​

Answer 1

Explanation:

Kinetic Energy , E=

2

1

mv

2

At the highest point , vertical component of velocity becomes zero and only the horizontal is left that is given by

u

x

=ucosθ

θ=45°,socosθ=

2

1

u

x

=

2

u

Kinetic energy E at the highest point =

2

1

m(

2

u

)

2

Answer 2

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A

n

s

w

e

r

A filament is a metal wire that glows when electricity is channeled into it. The filament of an electric bulb is made of Tunsten. Because of its high melting point and its greatest tensile strength, it makes for a good filament in light bulbs.