Posted by
**Luc** on
.

A hiker climbs a hill 300m high.If she weighs 50kg,calculate the work she does in lifting her body to the top of the hill

Tuesday

March 28, 2017
Posted by
**Luc** on
.

A hiker climbs a hill 300m high.If she weighs 50kg,calculate the work she does in lifting her body to the top of the hill

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