A 50 kg with 20 kg load on his climbs up 20 steps of 0-25 m height each- The minimum work done by the on the block during climbing is5 J350 J1000 J3430 J

Question

A 50 kg with 20 kg load on his climbs up 20  steps of 0-25 m  height each- The minimum work done by the on the block during climbing is5 J350 J1000 J3430 J

Toppr Admin · Accepted Answer

Mass of block-m-20kgHeight -h-20-xD7-0-25-5mWork doneW-mgh-xA0-xA0-xA0-xA0-xA0-xA0-xA0- -xA0-xA0-xA0-xA0- -xA0- -xA0- -20-xD7-10-xD7-5-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0-xA0- W-1000J

A $50 k g$ man with $20 k g$ load on his head climbs up $20$ steps of $0.25 m$ height each. The minimum work done by the man on the block during climbing is
$5 J$
$350 J$
$1000 J$
$3430 J$

Mass of block(m) $= 20 k g$
Height (h) $= 20 \times 0.25 = 5 m$
Work done $W = m g h$
$= 20 \times 10 \times 5$
$W = 1000 J$

A 50kg man with 20kg load on his head climbs up 20 steps of 0.25m height each. The minimum work done by the man on the block during climbing is5 J350 J1000 J3430 J

Mass of block(m)=20kgHeight (h)=20×0.25=5mWork doneW=mgh =20×10×5 W=1000J

A $50 k g$ man with $20 k g$ load on his head climbs up $20$ steps of $0.25 m$ height each. The minimum work done by the man on the block during climbing is
$5 J$
$350 J$
$1000 J$
$3430 J$

Mass of block(m) $= 20 k g$
Height (h) $= 20 \times 0.25 = 5 m$
Work done $W = m g h$
$= 20 \times 10 \times 5$
$W = 1000 J$