Question

a 2m crowbar is used to lift a load of 300kg. what force must be applied to one end of the crowbar when a stump acting at the fulcrum is placed under the crowbar 0.5m away from the end on which the load rests? neglect the weight of the crowbar

Answer 1

the weight (force) of the load is ... 300 kg * g

the distance from the fulcrum to the lifting force is
... three times the distance from the fulcrum to the load

so the lifting force is at least 1/3 of the weight of the load

Answer 2

F1 = M*g = 300*9.8 = 2940 N.
F2 = ?

F1*d1 = F2*d2.
2940 * 0.5 = F2 * 1.5,
F2 = ?

Answer 3

A 2m crowbar is employed to lift a load of 300kg. what force must be applied to one end of the crowbar when a stump acting. as a fulcrum is placed under a crowbar 0.5m away from the end on which the load rests? neglect the weight of the

Answer 4

Length of crowbar=2m
Load=300
Effort=?

Answer 5

The answer is not there