Answer to Question #143855 in Classical Mechanics for luyanda

Question

a crane a force ,F to lift a 200kg load up into the air . the load is accelerating upwards at o.5 m.s-2 . calculate the value of the applied force , F

Answer 1

Answer

By second law of motion

$F-mg=ma\\F=m(g+a)$

Mass(m) =200kg

Acceleration (a) =0.5m/s^2

So

$F=200\times (9.8+0.5)\\ F=2060N$