1.

A weightlifter drops a 15.0-kg barbell from a height of 2.0 m. Calculate the kinetic energy of the barbell as it hits the floor.\

Answer» SOLUTION:

Mass of BARBELL,m= 15kg

height, h= 2m

potential energy at that point= kinetic energy

potential energy= MGH

=> 15*10*2 (acceleration due to GRAVITY= 10 m/s^2)

= 300 joule

so,kinetic energy will be 300 joule.

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hope it helps☺☺



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