# What is the barbell’s mass?

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Naim Suleimanoglu of Turkey has a mass of about 68.1 kg, yet he can lift nearly 3 times this mass. (This feat has earned Suleimanoglu the nickname of “Pocket Hercules.”) If the potential energy associated with a barbell lifted 1.64 m above the floor by Suleimanoglu is 3.78 X 10^3 J, what is the barbell’s mass?

Naim Suleimanoglu of Turkey has a mass of about 68.1 kg, yet he can lift nearly 3 times this mass. (This feat has earned Suleimanoglu the nickname of “Pocket Hercules.”) If the potential energy associated with a barbell lifted 1.64 m above the floor by Suleimanoglu is 3.78 X 10^3 J, what is the barbell’s mass?

##### 1 Answer

Apr 3, 2018

235 Joules (significant figure rounding)

#### Explanation:

The energy required to move the barbell up 1.61m is the same as the amount of gravitational potential energy.

Solve to get 235 Joules (with significant figure rounding).

Hope my explanation helped.

Cheers