Question

$1000$ N force is required to lift a hook and $10000$ N force is requires to lift a load slowly. Find power required to lift hook with load with speed $v=0.5m/sec$

• A. $5kw$
• B. $5.5kw$
• C. $1.5kw$
• D. $4.5kw$

Answer 1

The correct option is B $5.5kw$

$P=F.V=(1000+1000)0.5$
$=\frac{11000}{2}=5500=5.5kw$